Nice.

Sold for a Spec KS Key(18 Keys), a Spec KS Batsaber(~13 Keys at the time) and ~19 Keys in Sweets(50 Keys total)

http://backpack.tf/profiles/76561198087179808#!/compare/1463875200/1463961600

Sold with ~2.5 Keys in Sweets for a Green Energy Thirst Blood(48.5 Keys)(46 Keys total)

http://backpack.tf/profiles/76561198196685086#!/compare/1464220800/1464307200

Sold for an Australium Scattergun(34 Keys at the time), a Green Confetti Professional's Panama(14 Keys) and a Giger Counter(2 Keys)(50 Keys total)

http://backpack.tf/profiles/76561198125711150#!/compare/1465603200/1465689600

Sold for 40 Keys

http://backpack.tf/profiles/76561198067575136#!/compare/1461801600/1461888000

Sold for a Terror-Watt Brown Bomber(60 Keys)(B/O was 42)

http://backpack.tf/profiles/76561198057420310#!/compare/1464652800/1464825600

http://www.tf2outpost.com/trade/28138270

Sold for an Australium Spec KS Knife(~21 Keys), an Australium Spec KS Black Box(~18 Keys) and 5 Keys(44 Keys total)

http://backpack.tf/profiles/76561198083872093#!/compare/1468022400/1468108800

Spec KS Key mini suggestion

Sold for an Australium Black Box(18 Keys at the time)

http://backpack.tf/profiles/76561198028850197#!/compare/1462838400/1462924800

Sold for a Smoking Frenchman's Beret(15 Keys)

http://backpack.tf/profiles/76561198028850197#!/compare/1462838400/1462924800

Added a Key for a Dead Presidents Big Chief(19 Keys)(18 Keys total)

http://backpack.tf/profiles/76561198097686980#!/compare/1462924800/1463011200

Sold for an Australium Grenade Launcher(21 Keys at the time)

http://backpack.tf/profiles/76561198090671680#!/compare/1463702400/1463788800

Sold with ~1 Key in Sweets for a Cloud 9 Scotch Bonnet(20 Keys)(19 Keys total)

http://backpack.tf/profiles/76561198253342244#!/compare/1464393600/1464480000

Using 15-21(18 as a median).

Sales seem to fit, 40-50 Keys should be fine.

Additional Proof/Counter-Proof/Constructive Criticism/Feedback is always appreciated.