Sale 1:

http://www.tf2outpost.com/trade/24735491#latest

Sold for an Antifreeze Tough Stuff Muffs

According to seller he offered thus no overpay calculated

http://i.imgur.com/ctIGb3B.png

23 buds

Sale 2:

http://www.tf2outpost.com/trade/24947670

backpack before: http://backpack.tf/profiles/76561198071508711?time=1422950400

backpack after: http://backpack.tf/profiles/76561198071508711?time=1423036800

Dark Blaze Well rounded rifleman (5.4), cloud 9 cloud crasher (3.3), Sunbeams Minnesota Slick (10) Strange professional killstreak australium Minigun (3)

0.9(5.4+3.3+ 10 + 3) =

19.53 rounded up to

20 buds

Sunbeams Mini: http://backpack.tf/vote/id/54b6a7aaba8d88b2368b457e; following Apothic's suggestion since B.O was 10 despite selling for slightly more.

Prof KS Australium Minigun mini:

Classifieds start at 38 keys

http://www.tf2outpost.com/trade/24884110 B.O of 45 keys

http://www.tf2outpost.com/trade/24456546 B.O of 45

http://www.tf2outpost.com/trade/24983847 B.O of 40 keys

http://www.tf2outpost.com/trade/24948218 B.O of 36 keys

http://www.tf2outpost.com/trade/24943682 B.O of 38 keys

http://www.tf2outpost.com/trade/24990312 B.O of 38 keys

Solds: http://www.tf2outpost.com/trade/24830142 Sold for 2 buds + fireproof secret diary (1.2)

Taking as 38 keys thus 3.04 buds rounded down to

3 buds