Choo Choo.

Car 4.

Sale 1:

https://backpack.tf/profiles/76561198244735040#!/compare/1534291200/1534464000

https://backpack.tf/profiles/76561198126870888#!/compare/1534377600/1534464000

Sold with ~2 keys in sweets for CPS Trucker Topper

Use there.

Sale 2:

https://backpack.tf/profiles/76561198244735040#!/compare/1534464000/1534550400

https://backpack.tf/profiles/76561197995912889#!/compare/1534377600/1534550400

Sold with 9 keys for Cool MW Leopard Rocket Launcher

Use there.

Sale 3:

https://backpack.tf/profiles/76561198089253101#!/compare/1531699200/1531785600

https://backpack.tf/profiles/76561198126690843#!/compare/1530921600/1531785600

Sold for Miami Gibus

Looks high, above sellers.

Sale 4:

https://backpack.tf/profiles/76561198126690843#!/compare/1531785600/1531872000

https://backpack.tf/profiles/76561198056249468#!/compare/1531699200/1531872000

Sold for 23 keys

Sale 5:

https://backpack.tf/profiles/76561198056249468#!/compare/1531872000/1532131200

https://backpack.tf/profiles/76561198099136395#!/compare/1532044800/1532131200

Sold for 26 keys

Sale 6:

https://backpack.tf/profiles/76561198099136395#!/compare/1532390400/1532563200

https://backpack.tf/profiles/76561198240590320#!/compare/1532476800/1532563200

Key ID do not match, but probs sold for 36 keys.

http://www.tf2outpost.com/trade/29718406

B/O of 30 keys, so cap there.

Sale 7:

https://backpack.tf/profiles/76561198240590320#!/compare/1532476800/1532563200

https://backpack.tf/profiles/76561198152236177#!/compare/1532563200/1532649600

Sold for OF Dapper Topper + 5 keys

Use there.

Sale 8:

https://backpack.tf/profiles/76561198152236177#!/compare/1532563200/1532649600

https://backpack.tf/profiles/76561198040187432#!/compare/1532649600/1532822400

Can't trace keys, but maybe sold for 29 keys?

Total sales @:

23, 26

23 took no time, 26 took slightly longer.

Let's go with 26 flat.