Don't think so, mate

Shipping works by two methods on mercadolivre

The first one, Correios, the agency responsible for delivery of the goods Brazilian people buy from ML, makes the shipping order automatically for the seller, and they bring it to the buyer.

The second method might suit you, which is when the seller (and the buyer) decide how they want to send the package. Be it by private transport or even correios, you name it.

So in theory, if you find your product announced with the option of deciding how you want it to be delivered, then convince the seller to send it to another country, yes, you can. I can't help you about the payment and account part, no idea if you will have issues with that.