I had C band (BUD) in Aguascalientes, Ags. (central) Mexico from 1985 until 1996. I'm not sure what is left on C band and you will need a US address to which to have the bill sent. The dish, by definition had to be large, about 14', to get the fringe signal and I had to use a 20 degree LNB which was very new and expensive at the time.
If you go DBS, which is a better idea, you will also need a larger dish. Check out the latinamerican forums on this and other DBS sites.