A little bit of help for a non existent for many publishers country of Belarus by fella from US.

Hi guys, just want to ask for some help. I just bought SFIV Arcade Edition, but i want to buy also DLC with costumes, but i cant do this from my country? here's the link http://store.steampowered.com/sub/8986/. Can some guy from US buy this for me(while sale is active), and in exchange i buy you some game or dlc in equal price. (many of games cheaper in our store, and many of them non region lock, if you interested and can help me - add me, and we find out the game you want )
Cheers!