This one was tough.

Needs a drop.

Added 7 Keys for a Duped Burning Flames Stout Shako(58 Keys, Offered)(51 Keys total)

http://backpack.tf/profiles/76561198119662522?time=1428476400 -> http://backpack.tf/profiles/76561198119662522?time=1428562800

http://www.tf2outpost.com/trade/25550308

Sold for an Australium Pro KS Ambassador(23.5 Keys) and an Australium Knife(21.5 Keys)(Offered)(45 Keys total)

http://backpack.tf/profiles/76561198119662522?time=1428649200 -> http://backpack.tf/profiles/76561198119662522?time=1428735600

http://www.tf2outpost.com/trade/25662851

Duped Burning Flames Stout Shako mini suggestion

Sold for an It's A Secret to Everybody Little Buddy(50 Keys with Overpay) and 8 Keys(58 Keys total)

http://backpack.tf/profiles/76561197976327399?time=1431673200 -> http://backpack.tf/profiles/76561197976327399?time=1431846000

Using 58.

Australium Pro KS Ambassador mini suggestion

All recent sales on the SCM(Keys = $2.49): http://steamcommunity.com/market/listings/440/Strange%20Professional%20Killstreak%20Australium%20Ambassador

$54.37

$57.49

$55.01

$56.01

$58.81

$58.96

$60.96

$60.00

$59.99

$60.55

$56.69

$59.33

$60.02

The average comes out at $58.32(Roughly 23.5 Keys)

Two sales, 45-51 Keys should be fine.

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