Re-suggestion, thanks to Chatterbox & Foamy for the info!

Sale 1:

https://backpack.tf/profiles/76561198107903058#!/compare/1524441600/1525219200

https://backpack.tf/profiles/76561198361129578#!/compare/1525046400/1525219200

Sold for C9 Scopers + Strange FT Cool Bomber Rocket Launcher + 0.97 in sweets

Unable to price RL.

Sale 2:

https://backpack.tf/profiles/76561198361129578#!/compare/1525305600/1525392000

https://backpack.tf/profiles/76561198282372085#!/compare/1525305600/1525392000

Sold with 6 keys for Beams Noble

https://backpack.tf/suggestion/5afa3d97cf6c7525990ae576

Suggestion on Noble for 77 keys.

Total is 71 keys.

Sale 3:

https://backpack.tf/profiles/76561198282372085#!/compare/1527552000/1527638400

Sold for Scorching MA

https://backpack.tf/suggestion/5b0858cecf6c7555f6678b51

Suggestion for 78 keys.

Taking 71 - 78 keys.

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Sale 4:

https://scrap.tf/auctions/3A4P5P

Sold with ~5 keys in sweets for Slumber Head Warmer + FT Spec KS Dragon Slayer Fury

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Warmer Mini:

https://backpack.tf/profiles/76561198039731024#!/compare/1525651200/1525737600

Sold for Cloudy Country

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Country Micro:

https://backpack.tf/profiles/76561198151835897#!/compare/1526860800/1527033600

https://backpack.tf/profiles/76561198158210385#!/compare/1526947200/1527033600

Sold for KE, which sold fo 73 keys within the hour, taking 73.

https://backpack.tf/profiles/76561198071103237#!/compare/1525737600/1527206400

Sold with 7 keys for DBD Lid(60.5)

Total is 53.5 keys

https://backpack.tf/profiles/76561198127977996#!/compare/1524873600/1524960000

Sold for Strange Tesla BoA(73)

Taking 73 flat.

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

https://backpack.tf/profiles/76561198239598834#!/compare/1524355200/1524441600

https://backpack.tf/profiles/76561198292242424#!/compare/1524268800/1524355200

Sold with Stormy Bonnet + ~44 keys in sweets for Burning Trophy Belt(113)

Bonnet Micro:

https://backpack.tf/profiles/76561198453417865#!/compare/1527206400/1527292800

Sold for 9 keys + 15 ref

https://backpack.tf/profiles/76561197997268820#!/compare/1526774400/1526860800

Sold for 11 keys

Taking 11 flat.

Total is 113 - (11 + 44) = 58 keys

================================================================================

Taking 73 flat.

This fits into the range.

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Sale 5:

https://scrap.tf/auctions/C8USL2

Sold with 10 keys + negligible sweets for Duped 13th Hour Fro

================================================================================

Fro Mini:

https://backpack.tf/profiles/76561198049419860#!/compare/1526515200/1526601600

Sold for 65 keys

https://backpack.tf/profiles/76561198049149130#!/compare/1526083200/1526169600

Sold for 63 keys.

https://backpack.tf/profiles/76561198049149130#!/compare/1525737600/1525996800

Sold for 51 keys

Taking 63-65 keys, Average of 64 keys.

Total is 54 keys.

================================================================================

Too close to Buyorders to use.

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Sale 6:

https://backpack.tf/profiles/76561198049419860#!/compare/1528934400/1529020800

https://backpack.tf/profiles/76561198176297517#!/compare/1529020800/1529193600

Bulk for Beams Cold killer

Sale 7:

https://backpack.tf/profiles/76561198176297517#!/compare/1529280000/1529366400

https://backpack.tf/profiles/76561198166314775#!/compare/1529280000/1529366400

Sold for Burning Flames Thirst Blood

https://backpack.tf/item/3059796099

https://backpack.tf/profiles/76561198321019586#!/compare/1529280000/1529366400

Keys were used to buy Blood, then traded to Seller, who bought the Soldered with it.

https://backpack.tf/suggestion/5b2afd7f44325a67417c1c1a

Suggestion for 74 keys.

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Sale 8:

https://backpack.tf/profiles/76561198166314775#!/compare/1529452800/1529539200

Sold for Phosphorous Company Mann

https://backpack.tf/suggestion/5b2e3bb244325a6e9e45de53

Suggestion for 84 keys

Sale 9:

https://backpack.tf/profiles/76561198165477682#!/compare/1529452800/1529539200

Sold for Searing Soldered + Aussie Grenade Launcher(14.54) + 16 keys

Soldered Mini:

https://backpack.tf/suggestion/5b3a75c544325a78443593d4

68.5 keys

Total is 99.04 keys

Total sales @:

71, 73, 74, 78, 84, 99

Foamy's Part:

thirst's gonna be a bit higher and the noble significantly lower. I think the noble sale will now fall off as low counterpart of the high outlier at 99.

Im not sure how the country ended up at 73 since there seem to be many data points on that are all over the place. I'd say that'd need a formal update, and perhaps this can be used there.

With the sales as they're displayed at the end of the comments, I'd go 78-84 or a rounded equivalent of that