At that miles all the ball joints most likely need to be looked at closly. Ask if he has replaced any of the control arms and on the drive try to hit some pot holes to make sure its not a rattle box. Ask about what servce has been done on the transnion as well. Also at start up look to see if there is a puff of smoke. Big thing is to find out how he has keep it what fixes has he done.

1997 Montero LS with a motor swap a 1990 V6 12valve ported heads full 2.5in Ex I run stock tire size for Daily use, off road have 33x12.5 working on going trubo.