Looking for good scenery in South America

Title says it all. I'm planning on doing some flights over the continent, and I must admit my geographic knowledge of the area is rather limited, and I have no idea what kind of scenery is out there for FS9. I'm looking for any scenery, preferably freeware or inexpensive payware suitable for general aviation flights. Big airports are ok, but I prefer the smaller regional types. My only limitation is that it is framerate friendly. I've found tons of stuff in the various libraries, but it would take me forever to identify those really great sceneries. If anyone out there could point me in the right direction, that would be great! The default stuff down there can be pretty disappointing if you don't have any add-ons. I do have FS Genesis mesh for the whole continent. I will do most of my flights with either the FSD Navajo or Seneca, if that helps. One last question: what is the furthest airport to the south that has add-on scenery (on the continent of South America)? Thanks in advance!