Go to Bed

https://backpack.tf/item/4900215571

Sale 1) Sold for a Death at Dusk Killer Exclusive (200 Keys) + ~53 Keys of Australiums + 20 Keys

https://backpack.tf/profiles/76561198114402400#!/compare/1565395200/1565481600

200 + 53 + 20 = 273, which I'll round to 275 Keys

Killer Exclusive Mini

https://backpack.tf/suggestion/5d51fe4567807204196f00d1 - 200 Keys

Sale 2) Sold for a Vivid Plasma Legendary Lid

https://backpack.tf/profiles/76561198060832332#!/compare/1565481600/1565568000

Better for the Lid.

Sale 3) Sold + ~2 Keys of Items + 1 Key for a GBH Tough Stuff Muffs (183 Keys) + Burning Flames Plug-In Prospector (27 Keys) + Stormy Juju (13 Keys)

https://backpack.tf/profiles/76561198061528728#!/compare/1565481600/1565568000

https://backpack.tf/profiles/76561198065400580#!/compare/1565395200/1565568000

183 + 37 + 13 - 2 -1 = 230 Keys

Muffs Mini

https://backpack.tf/suggestion/5d4a34abd38172360911609a - 183 Keys

Plug-In Mini

https://backpack.tf/profiles/76561198259772458#!/compare/1564444800/1564531200 - Quicksold for 27 Keys

https://backpack.tf/profiles/76561198065400580#!/compare/1564358400/1564531200 - Buyer's side

https://imgur.com/a/N9aoYCl - Seller at 37 Keys

https://backpack.tf/item/1736779980

Nothing else.

Juju Mini

https://backpack.tf/suggestion/5d521803d381727c5a6be3e6 - 13 Keys

If a better mini for the Duped Burning Flames Plug-In Prospector happens that'll change the price here, I'll make a new suggestion.