Surprisingly hard to find sales.

Sold for a Miami Nights Firewall Helmet(14 Keys with Overpay)

http://backpack.tf/profiles/76561198085937733?time=1429414570 -> http://backpack.tf/profiles/76561198085937733?time=1429426800

Sold for a Bubbling Birdcage(10 Keys) and 4 Keys(14 Keys total)

http://backpack.tf/profiles/76561198052090064?time=1430509682 -> http://backpack.tf/profiles/76561198052090064?time=1430550000

Bubbling Birdcage mini suggestion

Sold for a Smoking Little Buddy(11 Keys with Overpay)

http://backpack.tf/profiles/76561198126993284?time=1429858800 -> http://backpack.tf/profiles/76561198126993284?time=1429945200

Sold with ~1 Key in Sweets an Orbiting Planets Prancer's Pride(10 Keys with Overpay)(9 Keys total)

http://backpack.tf/profiles/76561198069513647?time=1429929178 -> http://backpack.tf/profiles/76561198069513647?time=1429945200

Using the mid range, 10.

Two sales, 14 Keys should be fine.

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