Only one recent usable sale in a long time.

Sold for a Gifted Orbiting Fire Brown Bomber after adding a Professional Killstreak Strange Jag and Professional Killstreak Strange Rescue Ranger:

http://www.tf2outpost.com/trade/23590082

The weapons:

http://www.tf2outpost.com/trade/23588019

The Bomber:

http://www.tf2outpost.com/trade/23670455

Taking 80% of the mean value of the Brown Bomber in the range according to http://forums.backpack.tf/index.php?/topic/6033-new-unusual-price-suggestion-guide-the-cheat-sheet/#entry167485

Mini Suggestion for the Professional weapons:

Rescue:

http://steamcommunity.com/market/listings/440/Strange%20Professional%20Killstreak%20Rescue%20Ranger

Mid value is approximately 4 keys on the SCM

Jag:

http://steamcommunity.com/market/listings/440/Strange%20Professional%20Killstreak%20Jag

Mid value is approximately 8 keys on the SCM

Total:

2.65*0.8 = 2.12 buds

8 + 4 = 12 keys

12*0.9 = 10.8 keys

Buds were 14.5-15 keys at that time, counting buds as 14.75 keys

10.8 keys = ~0.7 buds

2.1 - 0.7 = 1.4