Gustavo,
I own a '91 Landcruiser with 250k+ miles on it and it's the most reliable vehicle I have owned, contrary to what some people have remarked. I purchased it after I had a little Toyota pickup (with the infamous 22RE, the year before it was branded Tacoma) and that truck was bomb-proof. I got that little truck from my sister who actually drove it a whole year with no oil registering at all on the dipstick, and it did not affect it all whatsoever.
Back to the Landcruiser; I can tell you that MINE can go literally anywhere, and not get stuck, and I do just that with it... though it does also have a 3" Old Man Emu lift kit and lockers. This truck is more than large enough for any venture you could pursue with it, and in fact I remove the 2nd, and 3rd row seating and have a plywood flatbed I created which perfectly fits a full sized air mattress, and a gear stow space underneath. Two caveats with this setup though: 1. It will not be as cheap as the little Toyota, though Ive seen some that can be had in a similar year, in the 3-5k price range. 2. It is a gas hog. It has a standard inline 6, but this engine is huge, and because of the full time 4WD, it is not fuel friendly. Hwy mileage is actually not the worst (10-15MPG I would guess), but if you spend the day driving around a city, you can literally watch your fuel gauge meter descend.
Other than those 2 caveats, I highly recommend it. I've had to put in a new radiator since I've personally owned it (going on 6 years). That was a replacement to the original. The best part about this truck is I just get in, turn the key and go.
Good luck,
Cornelius