Well The4thHorseman,
I lived in western Venezuela for two years (Zulia, Tachira, and Trujillo states). Right now Venezuela is only a hop, skip, and a jump away from descending into a Columbia styled revolution. Unemployment is close to 20% and already 60%+ are at poverty or on the borderline. Crime is already astronomical, with muggings/burglery an everyday event in many neighborhoods. If SHTF happens, the economic impact will be global. They say that when the USA market sneezes, Europe gets the flu. Imagine what would happen in Venezuela, who's economy is based on oil exports to other countries...mainly the USA.
If the civilization you refer to is established by a local warlard, I can see your scenario as a remote possibility.
The women are beautiful, and I can still picture some of the beauties in my head. The bugs, snakes, spiders, etc are terrible though. That's not to mention dissentary (very common unless water is boiled to death), dengue fever, leprousy, and other terrible sicknesses down there. Everybody be sure to pack lots of mosquito repellent and bug netting.
Also, Venezuela is not agriculturally self sufficient. They currently import the vast majority of the wheat/bread they eat. In SHTF, you're talking total shock to the venezuelan economy and likely starvation for most. Their food stores are already low. In fact, Chavez's current economic policies have hurt their food supply even more.
I love the Venezuelan people and know people there that are dear to me. It's unlikely, however, to be a civilized gathering place in a SHTF scenario. It's much more likely for the caudillo warlord system to return. I doubt caudillos would care to welcome any armed gringos. Probably just shoot us and take our guns.