[onewhippedpuppy]

You can find a first or second generation 4Runner for $5k, it just might take some looking. In those the 3.0 V6 is a dog (aka three point slow), and there was a recall done for head gaskets. After the recall they are generally reliable, but get worse MPG for not much power. I would absolutely get a 1st gen 4Runner with the 22RE and a stick, it would be a bulletproof truck. Plus you can take the top off!

Pathfinder and XTerra are good as well, though if you get one with the early V6 they are also a dog. Look for one with the excellent VQ V6, which I think is the 3.5. They should be less than a comparable Toyota.

Others to look at if you want a bulletproof older SUV with some character:
Toyota Land Cruiser - the FJ80 and FZJ80 can be found for $5k. Slow, terrible MPG, but they have as much character as a classic 911. Also very nice to drive, and with the tail gate folded down you can haul 4x8 sheet goods. The only weakness is the head gasket on the FZJ80 models, otherwise they are incredibly overbuilt. I still regret selling my FJ80.
Mitsubishi Montero - sold as the Pajero in other world markets, another true expedition vehicle like the Land Cruiser. Easy to find for not much money. Note that there is a Montero Sport which is smaller and a POS, you want the Montero.



My old FJ80:



A true Montero: