Definitely not the most reliable vehicle out there - even when judged by Range/Land Rover standards. They can be had for dirt cheap. If you plan to DIY for most repairs then I would say find one that is not rusted and was property maintained. Otherwise follow the advise of others and look elsewhere.
That said they are very adept on and off the road and have a character than no other SUV can approach. Head over to
discoweb.org -- and do some research there before you commit. They also have a used car section where you will find realistically priced (cheap) options to buy.