Resuggesting! I might have forgotten about the single mp.tf sale there was!

Item 1

https://backpack.tf/item/12855423710

Sale #1

Only one scrap traces, counting keys doesn't show anything either so untraceable-

Seller: https://backpack.tf/profiles/76561199026390261#!/compare/1699228800/1699315200

Buyer: https://backpack.tf/profiles/76561198319114954#!/compare/1699228800/1699315200

Item 2

https://backpack.tf/item/12037800069

Sale #2

Bulk transfer-

Seller: https://backpack.tf/profiles/76561199202392924#!/compare/1692576000/1692662400

Buyer: https://backpack.tf/profiles/76561198283091524#!/compare/1692403200/1692662400

Sale #3

Untraceable?-

Seller: https://backpack.tf/profiles/76561198283091524#!/compare/1692662400/1692748800

Buyer: https://backpack.tf/profiles/76561198182787141#!/compare/1646179200/1697760000

Item 3

https://backpack.tf/item/12777811153

Sale #4

Sold for 6 keys + 21 refined? (ID "13628353618" of the unusual matches but this is probably incomplete)-

Seller: https://backpack.tf/profiles/76561198143978130#!/compare/1696550400/1696636800

Buyer: https://backpack.tf/profiles/76561198314692652#!/compare/1696377600/1696982400

Sale #5

Bulk sale-

Seller: https://backpack.tf/profiles/76561198314692652#!/compare/1696377600/1696636800

Buyer: https://backpack.tf/profiles/76561198125791160#!/compare/1696550400/1696636800

Sale #6

Sold for 25 keys (key bulk shows up in the seller's side but nothing traces but the other bulks trace to the other items, Minigun traces to the 43 keys and the Jag to the Sniper Rifle, unusual does show up on the buyer's backpack and key histories match as well)-

Seller: https://backpack.tf/profiles/76561198125791160#!/compare/1699488000/1699574400

Buyer: https://backpack.tf/profiles/76561198136959681#!/compare/1699056000/1699574400

Sell Order as Proof: https://gladiator.tf/time-machine?item=Terror-Watt+Frickin%27+Sweet+Ninja+Hood&at=2023-11-09T23%3A31%3A00.000Z

Unusual in Buyer's Backpack: https://imgur.com/a/WkGKboz

MP.TF Sale #1

Sold for $54.99 on August 25, 2023

Average Key Price @ $1.99ish

54.99/1.99 = 27.63ish keys

Unknown History

https://marketplace.tf/items/tf2/30394;5;u57

Sale @ 25, 28

Taking 25-28 here :3