Resuggestion, thanks to K1ng for the info!

Sale 1:

https://backpack.tf/profiles/76561198148511293#!/compare/1546387200/1546473600

https://backpack.tf/profiles/76561198230334860#!/compare/1546300800/1546473600

Bulk.

Sale 2:

https://backpack.tf/profiles/76561198230334860#!/compare/1546646400/1546732800

https://backpack.tf/profiles/76561198170427507#!/compare/1546646400/1546732800

untrace, looks like tradebacks?

Sale 3:

https://backpack.tf/profiles/76561198170427507#!/compare/1546646400/1546732800

https://backpack.tf/profiles/76561198048025936#!/compare/1546646400/1546732800

Sold with 1 key for OF Casemaker

Casemaker Mini:

https://backpack.tf/suggestion/5c9e8edd6780724f5d6347d5

Suggestion for 28 keys

Total is 27 keys

Sale 4:

https://backpack.tf/profiles/76561198048025936#!/compare/1547769600/1547856000

https://backpack.tf/profiles/76561198067103238#!/compare/1547769600/1547856000

Sold for Showstopper Lap(21) + ~3 keys in sweets + spell

Spell Mini:

https://backpack.tf/profiles/76561198024867201#!/compare/1547424000/1547510400

https://backpack.tf/profiles/76561198067103238#!/compare/1546732800/1547510400

Sold for 1 key

Total is 25 keys

Sale 5:

https://backpack.tf/profiles/76561198067103238#!/compare/1548201600/1548374400

https://backpack.tf/profiles/76561198274673432#!/compare/1547856000/1548460800

Sold for Steaming Rack

Rack Mini:

https://backpack.tf/suggestion/5c9e946d67807254725fe3c1

Suggestion for 34 keys

Sale 6:

https://backpack.tf/profiles/76561198274673432#!/compare/1550966400/1551571200

https://backpack.tf/profiles/76561198202186637#!/compare/1550880000/1550966400

Keys?

Total sales @:

25, 27, 34 keys

https://backpack.tf/classifieds?item=Leopard+Printed+%7C+Shotgun+%28Factory+New%29&tradable=1&craftable=1&australium=-1&particle=703&killstreak_tier=0

Buyers up to 21 keys,

nothing really counters 36,

K1ng's Part:

Victory Lap doesn't match in sale 4, the Searing Napoleon does and it's unsold at 15:

https://backpack.tf/classifieds?item=Napoleon%20Complex&quality=5&tradable=1&craftable=1&australium=-1&particle=15&killstreak_tier=0

Best to exclude that sale.

taking 27 - 34 keys.