Suggesting this as a counter of the other opened suggestion!

Mini for Green Energy Hong Kong Cone

Item 1

https://backpack.tf/item/13846256659

Sale #1

Untraceable-

Seller: https://backpack.tf/profiles/76561198069433286#!/compare/1701734400/1701820800

Buyer: https://backpack.tf/profiles/76561198125791160#!/compare/1701734400/1701820800

Item 2

https://backpack.tf/item/13843582847

Sale #2

Untraceable-

Seller: https://backpack.tf/profiles/76561198122287177#!/compare/1701648000/1701907200

Buyer: https://backpack.tf/profiles/76561198188093413#!/compare/1702166400/1702252800

Item 3

https://backpack.tf/item/13795164567

Sale #3

Untraceable?-

Seller: https://backpack.tf/profiles/76561199203680409#!/compare/1701388800/1701475200

Buyer: https://backpack.tf/profiles/76561198062075870#!/compare/1701388800/1701475200

Item 4

https://backpack.tf/item/13795071733

Sale #4

Sold for 166 keys (ID "13816472585" of the unusual traces to 3 keys on the seller's side but the rest are seen in the buyer's side, other unusual traces to the 20 key bulk using ID "13817581937" of it so should be fine to call it this)-

Seller https://backpack.tf/profiles/76561198999667088#!/compare/1700179200/1700438400

Buyer: https://backpack.tf/profiles/76561199389372563#!/compare/1700352000/1700438400

Sale #5

Untraceable? Maybe a transfer-

Seller: https://backpack.tf/profiles/76561199389372563#!/compare/1700438400/1700524800

Buyer: https://backpack.tf/profiles/76561198170157259#!/compare/1700438400/1700697600

Item 5

https://backpack.tf/item/13791000814

Sale #6

Bulk sale-

Seller: https://backpack.tf/profiles/76561198107067783#!/compare/1701734400/1701820800

Buyer: https://backpack.tf/profiles/76561198124502543#!/compare/1701734400/1701820800

Sale #7

Bulk sale-

Seller: https://backpack.tf/profiles/76561198124502543#!/compare/1701907200/1701993600

Buyer: https://backpack.tf/profiles/76561198261483133#!/compare/1701907200/1701993600

Sale #8

Sold for a Burning Flames Bomber's Bucket Hat + a Hypno-Eyes (ID "13890426586" of the unusual matches, would be too high just from taking the Flames Hat)-

Seller: https://backpack.tf/profiles/76561198261483133#!/compare/1701993600/1702080000

Buyer: https://backpack.tf/profiles/76561198071065153#!/compare/1701993600/1702080000

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Mini of Burning Flames Bomber's Bucket Hat

Item 1

https://backpack.tf/item/3349261558

Ignoring the trade-back between Zagii and Op1x

Sale #1

Sold for 290 keys (keys in the bulk match histories)-

Seller: https://backpack.tf/profiles/76561198158202805#!/compare/1701216000/1701302400

Buyer: https://backpack.tf/profiles/76561198367981056#!/compare/1701216000/1701302400

Sale #2

Gambled?-

Seller: https://backpack.tf/profiles/76561198367981056#!/compare/1701648000/1701734400

Buyer: https://backpack.tf/profiles/76561199161916038#!/compare/1701648000/1701734400

Sale #3

Probably gambled?-

Seller: https://backpack.tf/profiles/76561199161916038#!/compare/1701734400/1701820800

Buyer: https://backpack.tf/profiles/76561198096275833#!/compare/1701820800/1701993600

Sale #4

Untraceable-

Seller: https://backpack.tf/profiles/76561198096275833#!/compare/1701820800/1701993600

Buyer: https://backpack.tf/profiles/76561199005011487#!/compare/1701734400/1701820800

Sale #5

Gambled again it seems-

Seller: https://backpack.tf/profiles/76561199005011487#!/compare/1701820800/1701907200

Buyer: https://backpack.tf/profiles/76561199161916038#!/compare/1701820800/1701907200

Sale #6

Gambled?-

Seller: https://backpack.tf/profiles/76561199161916038#!/compare/1701993600/1702080000

Buyer: https://backpack.tf/profiles/76561198071065153#!/compare/1701993600/1702080000

Sale #7

Sold with a Hypno-Eyes for a Stellar Ascent Mean Captain (using this for the Captain)-

Seller: https://backpack.tf/profiles/76561198071065153#!/compare/1701993600/1702080000

Buyer: https://backpack.tf/profiles/76561198261483133#!/compare/1701993600/1702080000

Sale #8

Sold with a spelled Bearded Bombardier for a Terror-Watt Exquisite Rack + a Thundering Spirit Mannrobics (ID "13912347523" of the unusual matches)-

Seller: https://backpack.tf/profiles/76561198261483133#!/compare/1702425600/1702512000

Buyer: https://backpack.tf/profiles/76561198350736523#!/compare/1702425600/1702598400

Given sale at 290 and the sale at the end having buyers for the Rack at 301, this would already be too high to use for the Captain here so best to call it that

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Sale #9

Untraceable?-

Seller: https://backpack.tf/profiles/76561198071065153#!/compare/1701993600/1702080000

Buyer: https://backpack.tf/profiles/76561198213440243#!/compare/1701302400/1702080000

Item 6

https://backpack.tf/item/13731761893

Sale #10

Untraceable-

Seller: https://backpack.tf/profiles/76561199201678715#!/compare/1696809600/1700006400

Buyer: https://backpack.tf/profiles/76561198094220056#!/compare/1699920000/1701129600

Item 7

https://backpack.tf/item/13728352168

Sale #11

Untraceable?-

Seller: https://backpack.tf/profiles/76561198056657724#!/compare/1702252800/1702339200

Buyer: https://backpack.tf/profiles/76561199553506286#!/compare/1701820800/1702339200

Item 8

https://backpack.tf/item/13704613558

Sale #12

Untraceable? Even counting keys that left this would be way below buyers-

Seller: https://backpack.tf/profiles/76561199440818381#!/compare/1698451200/1698537600

Buyer: https://backpack.tf/profiles/76561198090750997#!/compare/1698451200/1698537600

Sale #13

Bulk sale-

Seller: https://backpack.tf/profiles/76561198090750997#!/compare/1699056000/1699142400

Buyer: https://backpack.tf/profiles/76561198051507736#!/compare/1698883200/1699315200

Item 9

https://backpack.tf/item/13696050518

Sale #14

Sold for a Stellar Ascent Ludicrously Lunatic Lunon Fedora (42.5 keys) + 155 keys (ID "13769698836" of the unusual matches) = 197.5ish keys-

Seller: https://backpack.tf/profiles/76561198138959323#!/compare/1698969600/1699315200

Buyer: https://backpack.tf/profiles/76561198072746367#!/compare/1699315200/1699401600

Sale #15

Sold for a Tesla Coil Modest Metal Pile of Scrap + 200 keys (ID "13789590207" of the unusual matches, this is too high already just by taking the keys given sellers for the Captain)-

Seller: https://backpack.tf/profiles/76561198072746367#!/compare/1699660800/1699747200

Buyer: https://backpack.tf/profiles/76561198076658601#!/compare/1699660800/1699747200

Item 10

https://backpack.tf/item/13694083644

Sale #16

Untraceable-

Seller: https://backpack.tf/profiles/76561198167071660#!/compare/1698624000/1698796800

Buyer: https://backpack.tf/profiles/76561198087099341#!/compare/1698710400/1698796800

Sale #17

Sold for 205 keys (ID "13850961292" of the unusual matches)-

Seller: https://backpack.tf/profiles/76561198087099341#!/compare/1701216000/1701302400

Buyer: https://backpack.tf/profiles/76561198065927956#!/compare/1701043200/1701302400

Item 11

https://backpack.tf/item/13672332190

Sale #18

Untraceable?-

Seller: https://backpack.tf/profiles/76561198117410014#!/compare/1699920000/1700006400

Buyer: https://backpack.tf/profiles/76561198090750997#!/compare/1699920000/1700006400

Sale #19

Sold for 190 keys (ID "13820868775" of the unusual matches)-

Seller: https://backpack.tf/profiles/76561198090750997#!/compare/1700438400/1700524800

Buyer: https://backpack.tf/profiles/76561198802642610#!/compare/1698969600/1700956800

Item 12

https://backpack.tf/item/13653356832

Sale #20

Sold for 150 keys (ID "13688981909" of the unusual matches)-

Seller: https://backpack.tf/profiles/76561198274897926#!/compare/1686787200/1697673600

Buyer: https://backpack.tf/profiles/76561198271577665#!/compare/1697587200/1697673600

Item 13

https://backpack.tf/item/13645999787

Ignoring the trade-backs between Gummy and Bunny at the beginning of this history

Sale #21

Bulk sale?-

Seller: https://backpack.tf/profiles/76561198057355049#!/compare/1698192000/1698278400

Buyer: https://backpack.tf/profiles/76561198047025682#!/compare/1698192000/1698278400

Sale #22

Untraceable? Maybe sold for 236 keys but nothing traces-

Seller: https://backpack.tf/profiles/76561198047025682#!/compare/1700611200/1701129600

Buyer: https://backpack.tf/profiles/76561199379272522#!/compare/1701388800/1701907200

Item 14

https://backpack.tf/item/13645908641

Sale #23

Probably sharked and sold for below buyers here or untraceable?-

Seller: https://backpack.tf/profiles/76561198235304396#!/compare/1698019200/1698105600

Buyer: https://backpack.tf/profiles/76561198058954965#!/compare/1698019200/1698105600

Sale #24

Sold for a The Bone Zone Wandering Wraith (ID "13754162795" of the unusual matches, probably too high given buyers at 187 for the Wraith and sellers at 190 for the Captain)-

Seller: https://backpack.tf/profiles/76561198058954965#!/compare/1698969600/1699056000

Buyer: https://backpack.tf/profiles/76561198218497692#!/compare/1698883200/1699056000

Sale #25

Sold with a Pro KS Australium Rocket Launcher for a Burning Flames Tundra Top + a spelled Strange Pro KS Original (ID "13757253039" of the unusual matches, this would be too high even when taking buyers for everything, would end up being 199ish keys)-

Seller: https://backpack.tf/profiles/76561198218497692#!/compare/1698883200/1699056000

Buyer: https://backpack.tf/profiles/76561198278979343#!/compare/1698969600/1699056000

Buyers for Everything: https://imgur.com/a/gID5r8c

Sale #26

Sold for 220 keys (ID "13765556847" of the unusual matches)-

Seller: https://backpack.tf/profiles/76561199128016202#!/compare/1699228800/1699142400

Buyer: https://backpack.tf/profiles/76561199039289574#!/compare/1699142400/1699228800

Sale #27

Bulk sale?-

Seller: https://backpack.tf/profiles/76561199039289574#!/compare/1702166400/1702252800

Buyer: https://backpack.tf/profiles/76561198011542670#!/compare/1702166400/1702252800

Sale #28

Sold for a Collector's Professional Killstreak Fan O'War (60 keys) + a Widowmaker Strangifier + a Strange KS AWPer Hand (31.51 keys, taking buyers) + 95 keys (ID "13910319068" of the unusual matches, this would be above seller even when taking buyers for the Strangifier at 14 making this at least 200.51ish keys)-

Seller: https://backpack.tf/profiles/76561198011542670#!/compare/1702339200/1702425600

Buyer: https://backpack.tf/profiles/76561198222183488#!/compare/1702425600/1702512000

Item 15

https://backpack.tf/item/13644651212

Sale #29

Untraceable?-

Seller: https://backpack.tf/profiles/76561198127504572#!/compare/1698796800/1698883200

Buyer: https://backpack.tf/profiles/76561198045518417#!/compare/1698796800/1699056000

Item 16

https://backpack.tf/item/13644021659

Sale #30

Sold for 170 keys (buyer's side is clean enough to call it that)-

Seller: https://backpack.tf/profiles/76561198851824297#!/compare/1697500800/1697587200

Buyer: https://backpack.tf/profiles/76561198201364639#!/compare/1697414400/1697500800

Item 17

https://backpack.tf/item/13643869888

Sale #31

Untraceable?-

Seller: https://backpack.tf/profiles/76561198089232668#!/compare/1699228800/1699488000

Buyer: https://backpack.tf/profiles/76561198091184632#!/compare/1699142400/1699228800

Sale #32

Untraceable?-

Seller: https://backpack.tf/profiles/76561198091184632#!/compare/1699228800/1699315200

Buyer: https://backpack.tf/profiles/76561198310972287#!/compare/1699228800/1699315200

Sale #33

Sold with a spelled Non-Craftable Rump-o'-Lantern for a Neutron Star Killer Exclusive + a Twinkling Lights Didgeridrongo(ID "13790972423" of the unusual matches, not using this given how high it would be compared to sellers)-

Seller: https://backpack.tf/profiles/76561198310972287#!/compare/1699660800/1699833600

Buyer: https://backpack.tf/profiles/76561198025680881#!/compare/1699747200/1699833600

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Mini of Neutron Star Killer Exclusive

Item 1

https://backpack.tf/item/5211236469

Sale #1

Sold with a Twinkling Lights Didgeridrongo for a Stellar Ascent Mean Captain + a spelled Non-Craftable Rump-o'-Lantern-

Seller: https://backpack.tf/profiles/76561198025680881#!/compare/1699747200/1699833600

Buyer: https://backpack.tf/profiles/76561198310972287#!/compare/1699660800/1699833600

Sale #2

Sold for a Cool Specialized Killstreak Hazard Warning Shotgun (Well-Worn) + a spelled Strange Ghastlierest Gibus (ID "13796987722" of the unusual matches, not usable, no other usable sales for the Shotgun however)

Seller: https://backpack.tf/profiles/76561198310972287#!/compare/1699833600/1699920000

Buyer: https://backpack.tf/profiles/76561199137751080#!/compare/1699574400/1699920000

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Mini of Cool Specialized Killstreak Hazard Warning Shotgun (Well-Worn)

Item 1

https://backpack.tf/item/6734548063

Sale #1

Bulk sale-

Seller: https://backpack.tf/profiles/76561199137751080#!/compare/1699574400/1699920000

Buyer: https://backpack.tf/profiles/76561198310972287#!/compare/1699833600/1699920000

Sale #2

Bulk sale-

Seller: https://backpack.tf/profiles/76561198310972287#!/compare/1700956800/1701043200

Buyer: https://backpack.tf/profiles/76561198035464165#!/compare/1700956800/1701043200

Sale #3

Only a Back Scratcher traces? Untraceable-

Seller: https://backpack.tf/profiles/76561198035464165#!/compare/1700956800/1701043200

Buyer: https://backpack.tf/profiles/76561198059439228#!/compare/1700956800/1701129600

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Sale #3

Sold for a Spec KS Australium Knife (19.22 keys) + a Pro KS Australium Ambassador (16.04 keys) + a Pro KS Australium Rocket Launcher (78.04 keys) + a Pro KS Australium Scattergun (70.61 keys) + a Pro KS Australium Tomislav (39 keys) + a Spec KS Australium Wrench (33.19 keys) + a Pro KS Australium Frontier Justice (25 keys) + 50 keys (all these items match histories and are either found in the buyer's side or the seller's side) = 331.1ish keys

Seller: https://backpack.tf/profiles/76561199137751080#!/compare/1700179200/1700265600

Buyer: https://backpack.tf/profiles/76561198152661801#!/compare/1700265600/1700352000

Buyers for Everything: https://imgur.com/a/3tZXTua

Given how high the only sale for this is I will be excluding taking this for the Captain

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Item 18

https://backpack.tf/item/13643361397

History is just a bot dump, not using this

Item 19

https://backpack.tf/item/13641472349

Sale #34

Sold for a Haunted Freedom Feathers (9.2 keys, taking buyers) + 200 keys (you can see the Freedom Feathers leaving the buyer's side) = 209.2ish keys-

Seller: https://backpack.tf/profiles/76561198104878940#!/compare/1697500800/1697587200

Buyer: https://backpack.tf/profiles/76561198093889730#!/compare/1697414400/1697500800

Item 20

https://backpack.tf/item/13639692759

Sale #35

Sold for a Strange Arachne's Web Mean Captain + a Wildflower Meadows Conga + a Solar Scorched Scorcher's Solo + 291 keys? (ID "13703229696" of the unusual matches but this is way too high given current sellers)-

Seller: https://backpack.tf/profiles/76561198043566764#!/compare/1697846400/1697932800

Buyer: https://backpack.tf/profiles/76561198163291190#!/compare/1697846400/1697932800

Sale #36

Untraceable?-

Seller: https://backpack.tf/profiles/76561198163291190#!/compare/1698278400/1698364800

Buyer: https://backpack.tf/profiles/76561198802109924#!/compare/1698192000/1698451200

Sale #37

Sold for 500 keys? Compare is clean enough but I'm not very sure if this is real?-

Seller: https://backpack.tf/profiles/76561198802109924#!/compare/1698969600/1699142400

Buyer: https://backpack.tf/profiles/76561198113044005#!/compare/1698969600/1699056000

Sale #38

Untraceable-

Seller: https://backpack.tf/profiles/76561198113044005#!/compare/1700438400/1700524800

Buyer: https://backpack.tf/profiles/76561198802642610#!/compare/1698969600/1700956800

Item 21

https://backpack.tf/item/13718751021

Sale #39

Sold for 212 keys (keys in buyer's side match)-

Seller: https://backpack.tf/profiles/76561198093221642#!/compare/1699142400/1699228800

Buyer: https://backpack.tf/profiles/76561199548630124#!/compare/1699056000/1699315200

Sale #40

Only 69 keys traces when looking at the histories of keys in the bulk, incomplete-

Seller: https://backpack.tf/profiles/76561199548630124#!/compare/1699401600/1699488000

Buyer: https://backpack.tf/profiles/76561198311498888#!/compare/1699401600/1699488000

Sale #41

Sold for 207 keys + 25.77 refined (ID "13828382304" of the unusual matches)-

Seller: https://backpack.tf/profiles/76561198311498888#!/compare/1700611200/1700697600

Buyer: https://backpack.tf/profiles/76561198098142278#!/compare/1700611200/1700784000

Sale #42

Bulk sale for a Pumpkin Moon Towering Patch of Pumpkins? Untraceable otherwise-

Seller: https://backpack.tf/profiles/76561198098142278#!/compare/1701388800/1701475200

Buyer: https://backpack.tf/profiles/76561198177872379#!/compare/1701388800/1701475200

MP.TF Sale #1

Sold for $549.99 on November 23, 2023

Average Key Price @ $1.71ish

549.99/1.71 = 321.63ish keys

Unknown History

https://marketplace.tf/items/tf2/31385;5;u294

Sales @ 150, 166, 170, 190, 198, 205, 207, 210, 212, 220, 322

Rounding and taking 165-220 here :3