This is my first price suggestion so i suspect there will be issues. Please give constructive critisism. (I've updated this as i realised one of the links where incorrect.)

The hat was bought for 85 mixed (46 pure a blizzardy storm hot rod worth 22 keys and a Steaming Your worst nightmare worth 20)

His BP afterwards http://backpack.tf/profiles/76561198019254407?time=1436770800

His BP before http://backpack.tf/profiles/76561198019254407?time=1436684400

He was looking for pure but was willing to do it for mixed since we knew each other.

Both hats are clean

http://backpack.tf/item/1143502746 YWN history

http://backpack.tf/item/1808819670 Hotrod history

Hotrod Mini

The Hotrod before trade http://backpack.tf/profiles/76561198019254407?time=1436857200

The Hotrod after http://backpack.tf/profiles/76561198019254407?time=143694360

Festivizer Mini

http://www.tf2outpost.com/trade/26505014 --- Unsold for 32

Final price=22(Hotrod) + 20 (the ywn) = 42

42 * 0.9 = ~39

39 + 46(pure) = 85

Thanks to ᴾᴾᴹ Shuffle Spy [7309] for all the help he has given me making this suggestion.