If you prefer to simply trade 100 used stamps for 100 in return, we can do that as well. If you send 100 (or 200) used stamps from Latin America, I will reply with the same number of used stamps from the USA & Canada (mostly commemoratives from the 1950 to 1970 era).
If you have used Canadian stamps (on paper is ok) after the year 2000, I can trade for those as well. I can offer a mix of older Latin American and/or USA commemoratives from 1950s through the 1980s.
I also have a mix of several hundred common definitives (with duplication) from Latin America, will trade them for less to anyone who is interested.