Need personal shopper to buy from Mercado Libre Brazil

I need someone in Brazil who can purchase an item for me from Mercado Libre. The item is available - a collectible toy - and I have tried to persuade to seller to ship to the United States, but he will only ship within Brazil. I simply need someone in Brazil to purchase it for me, find out how much shipping to the USA is, and I can pay them the full cost of the item, the overseas shipping, and a commission to pay for their time and help.