Finally got it

Paid;

Antifreeze Brown Bomber+C.Heart Villain Veil+G.Fetti Viewfinder+P.Energy Pyromancer (all clean expect the veil )

315+185*+185+170=855 (overpay applied, rounded to 850)

Proof;

http://gyazo.com/73e8167e1e0044eb24f9f5b1b9b6fd23

My backpack before trade http://backpack.tf/profiles/76561198060976608?time=1433401200

My backpack after trade http://backpack.tf/profiles/76561198060976608

Kingpie backpack was set to private, so there is no shown backpack history of him owning the pool party, but before the trade i made him unprivate the backpack to see if the pool party had a clean history, after the trade he gave the antifreeze brown bomber and c.heart villain veil to his friend ( http://backpack.tf/item/1650283331 and http://backpack.tf/item/474411193 ) and made his backpack private again ( http://backpack.tf/profiles/76561198038682506 ).

*Mini on the veil;

Only recent sale of a duped one i could find

http://i.imgur.com/FYzMHXy.png

Sold for H.Ghost Beak ( http://backpack.tf/item/202099025 ) + H.Ghost Medic Shakò ( http://backpack.tf/item/3341292585 ) + 15 keys pure

95**+75+15=185 (overpay applied)

**Mini on beak

Sold for Scorching Hustler's (124 Keys) w/ Max (28 Keys) = 96 Keys (rounded to 95)

Before the trade http://backpack.tf/profiles/76561198108059110?time=1427526000

After the trade http://backpack.tf/profiles/76561198108059110?time=1427654469

Hope i did it right (not very used to), any suggestion is appreciated!