Drop an email to Skipp Turner:
[email protected]
HE makes the "Minus" which from all accounts is one of the top competition fun fly planes. He deals direct, so you might be able to get one shipped to you.
I don't know what import duty and taxes are like in Brazil, but the Minus isn't an expensive plane, so it might still be reasonable. Can't hurt to check, right?
Good luck,
David