Item 1: https://backpack.tf/item/9748229784

Sale 1:

https://backpack.tf/profiles/76561198043632775#!/compare/1782432000/1782518400

https://backpack.tf/profiles/76561198311498888#!/compare/1782432000/1782518400

Dumped to STN, untrace

Sale 2:

https://backpack.tf/profiles/76561198311498888#!/compare/1782518400/1782604800

https://backpack.tf/profiles/76561198836757260#!/compare/1782518400/1782604800

Sold for 5 keys in a day, buyer listed it on MPTF then took it down again

Item 2: https://backpack.tf/item/10870124366

Sale 3:

https://backpack.tf/profiles/76561199059160806#!/compare/1777075200/1777161600

https://backpack.tf/profiles/76561198258803464#!/compare/1777075200/1777161600

Sold for 6 keys

Item 3: https://backpack.tf/item/3750665995

Sale 4:

https://backpack.tf/profiles/76561199111073161#!/compare/1777161600/1777248000

https://backpack.tf/profiles/76561198258803464#!/compare/1777075200/1777161600

Sold for 6 keys

Item 4: https://backpack.tf/item/4367616302

Sale 5:

Mannco.store, excluding

Sales:

5, 6 (x2)

Sellers:

BPTF - https://imgur.com/Yrb4ehh 8 keys (2 days), 9 keys (3 months)

MPTF - https://marketplace.tf/items/tf2/30609;5;u3064 $29.99 (~16 keys)

STN - https://stntrading.eu/item/tf2/Unusual+Magic+Shuffle+Taunt%3A+The+Killer+Solo none

SCM - https://steamcommunity.com/market/listings/440/Unusual%20Taunt%3A%20The%20Killer%20Solo?appid=440&q=Magic+Shuffle https://imgur.com/MQsZFA2 none

Buyer at 5 keys 5 ref has been there for 7 months so in theory it would have been there when the 5 key sale happened. That sale also only took a day so that also proves that it's on the low side. Going with 6 keys flat