Resuggestion, thanks to Blaze for the info!

Sale 1:

https://backpack.tf/profiles/76561198094832204#!/compare/1553558400/1553904000

https://backpack.tf/profiles/76561198930460537#!/compare/1553817600/1553904000

Can't trace

Sale 2:

https://backpack.tf/profiles/76561198930460537#!/compare/1554163200/1554249600

https://backpack.tf/profiles/76561198090147535#!/compare/1554163200/1554249600

Sold for spell, cant mini

Sale 3:

https://backpack.tf/profiles/76561198354095813#!/compare/1554076800/1554249600

https://backpack.tf/profiles/76561198090147535#!/compare/1554163200/1554249600

Sold with 6 keys for GE Carouser(23.5)

Total is 17.5 keys

Sale 4:

https://backpack.tf/profiles/76561198354095813#!/compare/1554422400/1554508800

https://backpack.tf/profiles/76561198210745395#!/compare/1554422400/1554508800

sold with 2 keys for Kill-a-Watt Bot Dogger

Dogger Mini:

https://backpack.tf/suggestion/5cab8fff67807270ea5e1085

Suggestion for 14.5 keys,

puts the sale at 12.5 keys.

Sale 5:

https://backpack.tf/profiles/76561198210745395#!/compare/1554422400/1554508800

https://backpack.tf/profiles/76561198279670065#!/compare/1554508800/1554595200

Sold for Stormy Halogen + ~3 keys in sweets

Halogen Suggestion for 11 keys:

https://backpack.tf/suggestion/5cac233ad381721e8d7dd488

Puts the sale at 14 keys

Total sales @:

12.5, 14, 18 keys

Blaze's Part:

i guess 13-18 could work here. no reason really not to include it