I must admit, I LOVE THE MEMES, THE DNA OF OUR- no.

Counter to: https://backpack.tf/suggestion/663c61fee2d368957c0f331e

Kudos to Lemons for helping me with this beast!

Sale #1

Bulk:

https://backpack.tf/profiles/76561198057452720#!/compare/1713225600/1713312000

https://backpack.tf/profiles/76561198285371555#!/compare/1713225600/1713312000

Sale #2

Darkblaze Barnstormer (In-date, 670 keys):

https://backpack.tf/profiles/76561198285371555#!/compare/1713571200/1713744000

https://backpack.tf/profiles/76561199485225128#!/compare/1713657600/1713744000

B/O was set to 666 keys:

https://next.backpack.tf/classifieds/snapshots/Starlight%20Haze%20Flash%20of%20Inspiration/6626205640bbce359403c786 (Link might be dead)

https://backpack.tf/suggestion/6618d32cf68d9261c801ced2

46027.26/69.11 = 666

Sale #3

Bulk:

https://backpack.tf/profiles/76561198063640894#!/compare/1714953600/1715040000

https://backpack.tf/profiles/76561198061405421#!/compare/1714262400/1715040000

Sale #4

Bulk:

https://backpack.tf/profiles/76561199485225128#!/compare/1714953600/1715040000

https://backpack.tf/profiles/76561198063640894#!/compare/1714953600/1715040000

Sale #5

Haunted Ghosts Flipped Trilby (48) + Strange Genuine Professional Killstreak Righteous Bison (8.5) + Exorcism Strange Professional Killstreak Huntsman (56) + P. Bombs Strange Festivized Professional Killstreak Rocket Launcher (34) + a Strange Festive Jarate (8.5) + Strange Professional Killstreak Festive Crusader's Crossbow (27.5) + Hellspawned Horns Dell Dynamic (20) + Sakura Smoke Bomb Backbreaker's Skullcracker (20, taking old price) + Mountain Halo Archer's Sterling (14) + Strange Professional Killstreak Australium Sniper Rifle (57) + Strange Festivized Professional Killstreak Helldriver Grenade Launcher (Minimal Wear) (32) + Arachne's Web Headhunter's Brim (33.5) + Hot Gifting Mann's Wrapping Paper Bazaar Bargain (Field-Tested) (21 + Strange Professional Killstreak C.A.P.P.E.R (58) + Potassium Bonnet (36) + Enchanted Taunt: Kazotsky Kick (62.5) + Non-Craftable Unusual Taunt: Doctor's Defibrillators Unusualifier (1.5) + Non-Craftable Unusual Taunt: Neck Snap Unusualifier (7.5) + Frozen Aurora War Paint (Factory New) (8.5) + 2 Strange Crossing Guards (6) + 125 keys:

https://backpack.tf/profiles/76561198215429899#!/compare/1717372800/1717459200

https://backpack.tf/profiles/76561198114151975#!/compare/1717372800/1717459200

48 + 8.5 + 56 + 34 + 8.5 + 27.5 + 20 + 20 + 14 + 57 + 32 + 33.5 + 21 + 58 + 36 + 62.5 + 1.5 + 7.5 + 8.5 + 6 + 125 = 685 keys

Sale #6

Viridescent Peeper Patriot Peak (340) + Hot Simple Spirits Shotgun (Field-Tested) (23ish+ Purple Energy Scotch Bonnet (47)+ Holy Grail Taunt: The Homerunner's Hobby (5) + Festive Fever Taunt: Second Rate Sorcery (2.5) + Vigorous Pulse Taunt: Skullcracker (4):

https://backpack.tf/profiles/76561198114151975#!/compare/1716940800/1717027200

https://backpack.tf/profiles/76561198061405421#!/compare/1716163200/1717027200

340 + 23 + 47 + 5 + 2.5 + 4 = 422 keys

Based on the comment from Lemons, taking 420 - 690 nice as the final range!