Another good area/set of teams to check out is the UK teams. I heard a rumor that they are trying to start up a regional out there, so that means they have figured out how to make it work there too.
As other posters have alluded, it is much much easier to start up FTC & FLL teams and tournaments in other countries, and perhaps could be a good stepping stone. The cost is a lot less, and the build seasons can be longer.
FRC is in incredibly difficult and expensive beast, so that is best undertaken with good sponsor/government/school participation (and it sounds like its probably easier in the northern hemisphere
).
Another good resource is to contact FIRST directly, and ask if they have started up any support for the country you are thinking of. They may already be looking into expanding into that region and may be able to provide funding, grants, or other types of support to get the area going.
Good luck!