Eh, at least this is still more reasonable.

Sold for a Terror-Watt Copper's Hard Top(11 Keys)

http://backpack.tf/profiles/76561198079726942#!/compare/1465430400/1466899200

http://backpack.tf/profiles/76561198052376393#!/compare/1465257600/1466812800

Seller at 10 Keys: http://www.tf2outpost.com/trade/28418731

SUPPORTIVE SALE:

Sold for a Bubbling Janissary Ketche(10 Keys)*

http://backpack.tf/profiles/76561198070804363#!/compare/1470355200/1470441600

http://www.tf2outpost.com/trade/28393080

*This sale was used for the ketche, though if it were used for this one-man instead a mini for the ketche would be a 10 Key B/O. This merely supports the 10 key seller.

11 is the only sale I can find, 10 comes from the seller. 10-11 Keys should be fine.

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