Hi, strong advice, go for one post '99 as TC was updated, plastic washers were replaced with metal ones, lots of things upgraded.
Other than that FULL SERVICE HISTORY is a must, look for last FULL service.
If there is a BOOK symbol on the Heating and Ventilation system (HEVAC) DO NOT BUY.
After 100,000 miles or the transfer box is recommended to be replaced, has this been done.
Bodywork as good as possible, and as others have mentioned don't use the full 8k for a car put aside 2 to 4 grand for replacements. For example, new transfer box £560 fitting two to three hours, there is your first £700 right away!
Get a good 4x4 mechanic with electrical knowledge to owe you 20+ favours, or learn to be a mechanic yourself as well.