Credits to FIFNAF and K1ng

Item #1

https://backpack.tf/item/10860940573

Sale #1: Untraceable. Buyer says he bought for 180 pure, which fits the range perfectly. I'll sleep on this one for now.

https://backpack.tf/profiles/76561197977705860#!/compare/1638835200/1639008000

https://backpack.tf/profiles/76561198177146103#!/compare/1638921600/1639008000

Sale #2 and 3: Hat moved twice in 1 day for 200 and 210 pure.

https://backpack.tf/profiles/76561198177146103#!/compare/1639008000/1639094400

https://backpack.tf/profiles/76561198248209800#!/compare/1637971200/1639094400

https://backpack.tf/profiles/76561197974943082#!/compare/1639008000/1639094400

Sale #4: Sold with bulk for a Golden Pan.

https://backpack.tf/profiles/76561198209640976#!/compare/1639958400/1640044800

https://backpack.tf/profiles/76561197974943082#!/compare/1639958400/1640044800

Item #2

https://backpack.tf/item/10860366098

Sale #1: Sold with bulk for Arcana Titanium Tyrolean.

https://backpack.tf/profiles/76561198310424539#!/compare/1643760000/1643846400

https://backpack.tf/profiles/76561198177872379#!/compare/1638489600/1643760000

Item #3

https://backpack.tf/item/11317240918

Sale #1: Sold for 140 pure. Lower than buy orders

https://backpack.tf/profiles/76561197999542517#!/compare/1638835200/1639008000

https://backpack.tf/profiles/76561198133319499#!/compare/1638662400/1639008000

Sale #2: Sold with bulk for Spellbound Gatsby.

https://backpack.tf/profiles/76561198220098345#!/compare/1640563200/1640649600

https://backpack.tf/profiles/76561198133319499#!/compare/1640390400/1640649600

Sale #3: Sold for 150 pure.

https://backpack.tf/profiles/76561198177146103#!/compare/1645228800/1645315200

https://backpack.tf/profiles/76561198220098345#!/compare/1645228800/1645315200

Taking 150

Item #4

https://backpack.tf/item/11110766604

Sale #1: Looks like it sold for 67 pure + ~50 key hat. Rounding to 120. Lower than buy orders.

https://backpack.tf/profiles/76561198177146103#!/compare/1639094400/1639180800

https://backpack.tf/profiles/76561198207823797#!/compare/1638921600/1639180800

Item #5

https://backpack.tf/item/11097827906

Sale #1: Sold for 150 pure.

https://backpack.tf/profiles/76561198040099512#!/compare/1639094400/1639180800

https://backpack.tf/profiles/76561198177146103#!/compare/1639094400/1639180800

K1ng:

New sales: Bulk

https://backpack.tf/profiles/76561198302622358#!/compare/1649376000/1649462400

https://backpack.tf/profiles/76561198258937500#!/compare/1649376000/1649462400

Bulk

https://backpack.tf/profiles/76561198076637124#!/compare/1647129600/1649808000

https://backpack.tf/profiles/76561198258937500#!/compare/1649721600/1649808000

~190 keys

https://marketplace.tf/items/tf2/30755;5;u201

Best used there

https://backpack.tf/profiles/76561198031673028#!/compare/1650153600/1650240000

https://backpack.tf/profiles/76561198132068284#!/compare/1650153600/1650240000

Bulk

https://backpack.tf/profiles/76561198244962432#!/compare/1650326400/1650412800

https://backpack.tf/profiles/76561198132068284#!/compare/1650326400/1650412800

160 keys

https://backpack.tf/profiles/76561198244962432#!/compare/1650758400/1650844800

https://backpack.tf/profiles/76561198065231973#!/compare/1650758400/1650844800

165 keys

https://backpack.tf/profiles/76561198069239963#!/compare/1646697600/1646784000

https://backpack.tf/profiles/76561198849783241#!/compare/1646784000/1647475200

https://gladiator.tf/listings/6269873366fc90d70bd874eb --- listed at 170

It was unsold at 200 for a while, so anything above that will be high. 150-200 should be fine.

Only new sale seems to be with a scammer alt:

https://backpack.tf/item/10750506319

Taking 150 - 200 as K1ng suggested.