ok first off if don't know MJs are unibody front ends so only part of body you can jack up is the bed. but if nothing else what engine is in it? I good shaped no rust Mj to me is worth $1000 running with 4wd and a 4.0. if can wants to just scrap it then I say a fair price be $350-$450 range and this depends as in if it is a 2.5 or 4.0 etc... and if you are not very wrench capable then may need some help with doing a drivetrain swap. but as mention a doner rig makes things easier. But being 14 I think it would be a great thing to get him into. just tell him if he wants a car to drive then he better fix it so he can. :yes: be a good healthy hobby for him and teach him responsibility, which is why I assume your asking, so in long words, I personally think it is worth it, but I own a MJ and is kinda partial. :shake: