Second go at this.

Sale #1

1:1 with a kill-a-Watt Brown Bomber.

48 keys was the last sale, but one is on outpost for 45 keys and its unsold, so ill use 45 keys seeing one sold for 48.

Proof:

Bp Before : http://backpack.tf/profiles/76561198041371601?time=1443942000

Bp After : http://backpack.tf/profiles/76561198041371601?time=1444114800

Mini on Bomber:

Sold 1:1 with an Aussie Rocket launcher , 53 times .9 = 47.7 rounding to 48

Proof:

Bp before : http://backpack.tf/profiles/76561198031608383?time=1441522800

Bp After : http://backpack.tf/profiles/76561198031608383?time=1441695600

Sale # 2

Sold for 40 pure keys.

Proof:

Bp Before: http://backpack.tf/profiles/76561198009089083?time=1441263600

Bp After : http://backpack.tf/profiles/76561198009089083?time=1441350000

So sale 2 for 40 pure.

Only 2 sales in the last 3 months. so 40-45 keys i think is a fair price for it considering a sale was for pure, and the pure and item overpay sale are so close is value.

Thanks and have a nice day!