get both DS games (though obviously 12 would require an import and/or an emulator)
also I'm sure you can snag FE9/10 for less than $60 if you look in the right places
I don't think I could get them for cheap in Chile haha. I would if I could though, but South America is rough for older games.
EDIT: Thanks for the advice. A shame the DS games don't have supports. That feature is so cool. Is the story at least good?