https://backpack.tf/profiles/76561198859721638#!/compare/1573948800/1574035200

https://backpack.tf/profiles/76561198038666068#!/compare/1572825600/1574035200

https://bot.tf/stats/listings/Y3519650 120 key buyout

Ethereal Essence Skullbrero ~56 keys? https://backpack.tf/suggestion/5e2851c48f5ba6241e3a5530

Wicked Wood Bat Hat ~23 keys https://backpack.tf/suggestion/5e284ae7749bab30f53344a7

The Eldritch Opening Tank Top ~29 keys https://backpack.tf/suggestion/5e2850bcf19eeb27a12b02b1

This sale is 108 keys

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https://backpack.tf/profiles/76561198859721638#!/compare/1574208000/1574294400

https://backpack.tf/profiles/76561198134238543#!/compare/1574208000/1574294400

but then after that, sold for Ooze Toy Soldier, which only has sales around 70 keys

https://backpack.tf/suggestion/5e2853862e0cf617342abb12

Classic case of buy high sell low, not using this sale on either this or the Toy Soldier

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https://backpack.tf/profiles/76561198082979348#!/compare/1574640000/1574726400

https://backpack.tf/profiles/76561198134238543#!/compare/1574553600/1574726400

Galactic Gateway Head Hedge (64 keys) + Nuts Soldier's Stash (30 keys)

Stash is 30 keys https://backpack.tf/suggestion/5e27a8445781a42a4726a1e6

https://bot.tf/stats/listings/Y359DEPQ 110 key buyout

This sale is 94 keys

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https://backpack.tf/profiles/76561198082979348#!/compare/1574726400/1574812800

https://backpack.tf/profiles/76561198120672630#!/compare/1574726400/1574812800

Secret Stove Pipe

I think I kinda used this sale there? https://backpack.tf/suggestion/5e285b26f0ef021b7730071a

But even if I didn't use it there, that suggestion could (?) work without it so I'll "use" it here too

Stove Pipe is ~91 keys

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https://backpack.tf/profiles/76561198120672630#!/compare/1575244800/1575331200

https://backpack.tf/profiles/76561198036268558#!/compare/1575244800/1575331200

Cloud 9 Bonk Boy, KaW Killer's Kabuto, like 6 key sweets

https://bot.tf/stats/listings/4ZK5JZPQ 122 key buyout

Bonk Boy is ~90 keys https://backpack.tf/suggestion/5e27a3006ce88b71203a9395

Kabuto is ~23 keys https://backpack.tf/suggestion/5e27a4f956389a3fd9593f1c

119 keys

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Sales:

~91 keys Secret Stove Pipe

~94 keys Head Hedge / Nuts Stash

~108 keys Skullbrero, Tank Top, Bat Hat

~119 keys Bonk Boy, Kabuto

there seems to be support for both low and high ends, so I'll go with a full range, rounded to 90-120