Updated using Shiffle Spy’s mini for the kabuto

https://backpack.tf/item/1707683610

Sale 1: Untraceable from either side of the compare.

https://backpack.tf/profiles/76561198120672630#!/compare/1677024000/1677110400

https://backpack.tf/profiles/76561198429572676#!/compare/1677024000/1678233600

Sale 2: Again, weird links here.

https://backpack.tf/profiles/76561198120672630#!/compare/1678838400/1678924800

https://backpack.tf/profiles/76561198310972287#!/compare/1678752000/1678924800

https://imgur.com/a/eCPJP9E

Completed trade was Sunbeams Kabuto for: Green Black Hole Tam' O Shanter, 5 keys, and Refracting Fractals Undercover Brolly.

I can't find any usable sales on the Kabuto so I'm going to exclude this as well.

Sale 3: 300 keys pure

https://imgur.com/a/iSpOJIb

The Plaid Lad was used as collateral to ensure the promised amount would be paid.

Plaid Lad: https://backpack.tf/profiles/76561198310972287#!/compare/1679011200/1679097600

https://backpack.tf/profiles/76561198405168492#!/compare/1679097600/1679443200

Originally sent to me with no items on my side, and sent back with the Tam O' Shanter.

https://imgur.com/a/VgrE9wc

History shows it was traded back.

https://backpack.tf/item/12627222565

Taking 300 keys flat. I will update with a compare link for the 300 sale ASAP.

My compare: https://backpack.tf/profiles/76561198310972287#!/compare/1681948800/1682035200

Shuffle spy’s mini:

Kabuto sales:

https://backpack.tf/profiles/76561198271915998#!/compare/1676851200/1676937600 - Sunbeams Festivizer + Steaming Brainiac + Stormy Pithy + 25

https://backpack.tf/profiles/76561198169458269#!/compare/1678752000/1678838400 - 210 Keys

https://backpack.tf/profiles/76561198120672630#!/compare/1679097600/1679270400 - Steaming Beak + 25

https://backpack.tf/profiles/76561198362344111#!/compare/1683849600/1684195200 - Burning Rebel (160) + FN Cool Snowflake Shotgun + ~13 in Items

https://backpack.tf/profiles/76561198086312574#!/compare/1679011200/1679097600 - The only other Beak sale was 190

The Festivizer, Pithy, and Shotgun have no other traceable sales, so 210 - 215 would work for the Kabuto.

https://backpack.tf/profiles/76561198841669997#!/compare/1684368000/1684454400 - The Brolly has a recent sale at 13 Keys

212.5 - 13 - 5 = 194.5, which can round to 190 Keys. 190 - 300 would work as a range.