Reupdating:

Searing Plasma Brigade Helm

Sellers:

http://www.tf2outpost.com/trade/23924638 - B.O = 3 buds

http://www.tf2outpost.com/trade/23909140 - B.O = 42 keys (3 buds)

Sold:

Seller 1:

http://www.tf2outpost.com/trade/23227291

backpack before: http://backpack.tf/profiles/76561198012473875?time=1414047600

backpack after: http://backpack.tf/profiles/76561198012473875?time=1414134000

Sold for 3 pure

Seller 2:

http://www.tf2outpost.com/trade/23689879 - B.o of 3.3 buds

backpack before: http://backpack.tf/profiles/76561198072370186?time=1415865600

backpack after: http://backpack.tf/profiles/76561198072370186?time=1416988800

Sold for a cloud 9 Medic's mountain cap

No overpay calculated as it seems he was offering: http://www.tf2outpost.com/trade/23763366

Mini for mountain cap:

http://www.tf2outpost.com/trade/23364813 Offered a circling peace sign modest

Thus taking it as 3.1 buds (last price suggestion seems to be still quite accurate)

Seller 3:

http://www.tf2outpost.com/trade/23318876 - B:O of 48 keys

backpack before: http://backpack.tf/profiles/76561198050370299?time=1415779200

backpack after: http://backpack.tf/profiles/76561198050370299?time=1415779200

Sold for a nuts and bolts Villain's Veil

Mini for Villain's veil:

http://www.tf2outpost.com/trade/23750252 B.O of 3.3 buds

Offerred 40 keys = 2.86 buds at the current rate

Therefore taking it as 2.95 buds (in current price suggestion)

2.95 x 0.9 = 2.655 buds rounded up to 2.7 buds

Seller 4:

http://www.tf2outpost.com/trade/23884838 B.O OF 2 buds and 10 keys

couldn't find what this sold for.