Sale 1:

https://backpack.tf/profiles/76561198337734785#!/compare/1545609600/1545696000

https://backpack.tf/profiles/76561198873310521#!/compare/1545609600/1545696000

Sold for ~24 keys

Sale 2:

https://backpack.tf/profiles/76561198873310521#!/compare/1545609600/1545696000

https://backpack.tf/profiles/76561198846287608#!/compare/1545609600/1545696000

Sold for Searing Towering + ~4 keys in sweets

Towering Mini:

https://backpack.tf/suggestion/5c972aa3d3817223c917cc67

Suggestion for 23.5 keys

Total is 27.5 keys

Sale 3:

https://backpack.tf/profiles/76561198846287608#!/compare/1547424000/1547510400

https://backpack.tf/profiles/76561198348057478#!/compare/1547424000/1547510400

Sold with negligible sweets for DBD Harmburg(23.5)

Total is 23 keys, sweets round down.

Sale 4:

https://backpack.tf/profiles/76561198348057478#!/compare/1547510400/1547683200

https://backpack.tf/profiles/76561198187093225#!/compare/1547596800/1547683200

Sold for Miami Warmer + 3 keys

Use there

Sale 5:

https://backpack.tf/profiles/76561198187093225#!/compare/1547683200/1547769600

https://backpack.tf/profiles/76561198205939253#!/compare/1547683200/1547769600

Sold for Blizzardy Rouser + ~4 keys in sweets

Rouser Mini:

https://backpack.tf/suggestion/5c97222dd381721ffc55d34e

Suggestion for 23 keys

Total is 27 keys

Total sales @:

23, 24, 27, 27.5 keys

Taking 23 - 28 keys