Few sales missed. Raiden?

http://backpack.tf/item/5019660260

Sale 1) Sold for 34 Keys + 13 Earbuds (2 Keys each at the time)

http://backpack.tf/profiles/76561197982127154#!/compare/1479772800/1479859200

34 + (13 * 2) = 60 Keys

Sale 2) Sold for 67 Keys

http://backpack.tf/profiles/76561198148224805#!/compare/1481328000/1481500800

http://backpack.tf/item/2650544612

Sale 3) Sold for 64 Keys

http://backpack.tf/profiles/76561198108148076#!/compare/1483315200/1483401600

http://backpack.tf/item/3218011260

Sale 4) Sold for a Green Energy Defiant Spartan (60 Keys)

http://backpack.tf/profiles/76561198172569514#!/compare/1481932800/1485129600 - GE Spartan

Spartan Mini

http://backpack.tf/profiles/76561198002186909#!/compare/1485993600/1486080000 - Sold for a Frostbite Baker (60 Keys)

http://backpack.tf/item/2901587299

Sale 5) Sold for a KaW BoA (69 Keys) + 2 Keys

http://backpack.tf/profiles/76561198002186909#!/compare/1482710400/1482796800

69 + 2 = 71 Keys, which I’ll round to 70 Keys

BoA Mini

http://backpack.tf/profiles/76561198073863984#!/compare/1482278400/1482364800 - Sold + ~15 Keys of Items for a Death by Disco Hellmet (84 Keys)

+ all the sales from Blaze's suggestion that aren't here