https://backpack.tf/item/128375535

Clean

https://backpack.tf/profiles/76561198876163175#!/compare/1648425600/1648684800

https://backpack.tf/profiles/76561197996581311#!/compare/1648425600/1648598400

https://gladiator.tf/listings/62420a4cfc811111a208ffb4

Spectral Max

https://backpack.tf/profiles/76561198324276106#!/compare/1654041600/1654128000

https://backpack.tf/profiles/76561198080301085#!/compare/1653955200/1654128000

90 keys

+

Strange Construction PDA

https://gladiator.tf/sales?item=Strange%20Construction%20PDA&at=2022-03-30T22:13:54.047Z

~51 keys

+

Spectral Strange Villain's Veil

https://backpack.tf/profiles/76561198007821344#!/compare/1646092800/1646265600

https://backpack.tf/profiles/76561197996581311#!/compare/1646179200/1646265600

12 keys

+

Spectral VFB Special Eyes

https://backpack.tf/profiles/76561198223429284#!/compare/1647302400/1647475200

https://backpack.tf/profiles/76561197996581311#!/compare/1647302400/1647475200

60 keys

+

Exorcism Professional Killstreak Australium Sniper Rifle

https://backpack.tf/profiles/76561198045578294#!/compare/1648166400/1648252800

https://backpack.tf/profiles/76561197971854756#!/compare/1648166400/1648252800

120 keys

+

Exorcism PB Professional Killstreak Australium Wrench

https://backpack.tf/profiles/76561199220039423#!/compare/1646697600/1646956800

https://backpack.tf/profiles/76561197996581311#!/compare/1646784000/1646870400

Total (from below): 242 keys

Strange Festivized Professional Killstreak Kritzkrieg

https://gladiator.tf/sales?item=Strange%20Festivized%20Professional%20Killstreak%20Kritzkrieg&at=2022-03-16T22:24:27.497Z

https://backpack.tf/item/729586675

68 keys

+

Strange Byte'd Beak

https://gladiator.tf/sales?item=Strange%20Byte%27d%20Beak&at=2022-03-10T22:25:01.582Z

~23 keys

+

Professional Killstreak Australium Medi Gun

https://gladiator.tf/sales?item=Strange%20Professional%20Killstreak%20Australium%20Medi%20Gun&at=2022-03-10T22:25:39.311Z

~89 keys

+

Professional Killstreak Big Kill

https://gladiator.tf/sales?item=Professional%20Killstreak%20Big%20Kill&at=2022-03-10T22:28:14.519Z

~11 keys

+

Strange Dead Head

https://gladiator.tf/sales?item=Strange%20Dead%20Head&at=2022-03-10T22:29:19.597Z

~51 keys

=

242 keys

=

90 + 51 + 12 + 60 + 120 + 242

=

575 keys

(Revisions based on Blaze's comments here: https://backpack.tf/suggestion/6275a1c1e743f754f93c5885#comment-629f7c72aacceb494e3c9178)

Rounding to 580 flat.