I just sold my nice Nissan Xterra for $4000.... look for one of those.
A couple of opinions on what has been said so far... The high COG worries usually come form those who have never had a Discovery on a steep incline. You have to remember that the frame, axles, and engine are rather low and carry the most weight as the body of the car is aluminum. If you are on something that a Discovery can't handle then you are probably out of your league as a teen and would have problems with any vehicle.
I'm basing my comments on the actual measured CG, and compared to the CG height of other vehicles. The Discovery CG is high, and it's not very wide.