Starboy. Fixing Sale 2 (Thanks, Cashew).

http://backpack.tf/item/5188474648

Sale 1) Sold for 60 Keys

http://backpack.tf/profiles/76561198087968709#!/compare/1483747200/1483833600

Sale 2) Sold for a Disco Beat Down Greased Lightning (42.5 Keys) + FN AWP | Lightning Strike (~20 Keys) + 10 Keys

http://backpack.tf/profiles/76561198023218196#!/compare/1487030400/1487116800

42.5 + 20 + 10 = 72.5, which rounds to 73 Keys

Greased Mini

http://backpack.tf/suggestion/58c85db6e3387729c9521c2d - 42.5 Keys

Sale 3) Sold for a Cloud 9 Brainiac Hairpiece + Circling Peace Sign Texas Ten Gallon

http://backpack.tf/profiles/76561198065879305#!/compare/1487030400/1487203200 - Buyer's Backpack

http://www.tf2outpost.com/trade/28781187 - Capped by the Buyout of 60 Keys.