Proof below. Overpay calculated

Sales

http://www.tf2outpost.com/trade/14763666

http://backpack.tf/id/76561198065375829?time=1376550000 ---> http://backpack.tf/id/76561198065375829?time=1377673200

Steaming Milkman + Birdman = 1.2 buds

http://www.tf2outpost.com/trade/14641173

http://backpack.tf/id/76561198073394786?time=1380351600 ---> http://backpack.tf/id/76561198073394786?time=1380438000

Looks like he paid roughly 22/23 keys for it, since he seemed to have received items from other players, such as a bills.

Thats an estimate of 1.3 buds

Conclusion

Never had a proper price suggestion, hopefully I didnt miss out any details on the 2nd sale :3 Vote accordingly

Help / Constructive Criticism / Additional Proof / Counter-Proof is ALWAYS welcome! >;3