Hi! This is my first unusual suggestion:)

There is one that sold for

massed flies grimm hatte (3.6-3.9 buds) +1 bud + bills (0.3-0.4 bud) + vintage physicians mask (0.1 bud)+ Sf ubersaw (0.1 bud)

Proof

[url]http://www.tf2outpost.com/trade/13066219[/url]

As the previous owner took those in his and gave his disco beat down fruit shoot away, so i think the trade was deal.

The price that i suggest would be:

The low value = 5 buds (Overpay 0.2 bud and take the lower value of massed flies grimm hatte)

The high calue = 5.3 buds (Overpay 0.2 bud and take the higher value of massed flies grimm hatte)

I hope i make it right:)