Resuggestin.

Sold for a Strange Spec KS Aussie Stickybomb Launcher(~1.6 with Overpay, Outlier)

http://backpack.tf/profiles/76561198069719067?time=1414911600 -> http://backpack.tf/profiles/76561198069719067?time=1415413965

Sold(maybe to a collector) for a Strange Pro KS Aussie Black Box(33 Keys, converted to 2.5)

http://www.tf2outpost.com/item/440,3163647143,174,5 Whoopee History

http://www.tf2outpost.com/item/440,3164672636,228,11 Black History

Strange Pro KS Aussie Black Box mini suggestion:

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

$85.53

$68.99

$71.50

$74.95

$81.67

$74.89

$92.00

$83.55

$86.84

$91.86

$89.95

$86.01

$80.50

$86.31

$85.99

$94.71

$78.87

$83.81

$95.61

$81.11

$60.45

$72.87

$81.16

$88.68

$80.02

$86.04

$83.03

$83.61

The average comes out at $82.52(Roughly 33 Keys)

To back this up:

http://www.tf2outpost.com/trade/23437615 He got offers of 32 Keys and 2 Buds before.

http://www.tf2outpost.com/trade/24125773 Young seller at 33 Keys

1.6 is an outlier because he got offers higher than that before: http://www.tf2outpost.com/trade/23537442 and the fact that 2.5 sold in a day. 2.5 Should be fine.

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