Range Rover purchase advice!

Hello I play with the thought of buying a used Range Rover of the years 02-03. It would be a 4.4 V8 and it should replace my Tahoe. However I would have a few questions and hope to meet a few Range drivers who could help here. 1. How about the susceptibility of the car there are special weaknesses what does the electronics do on what should be taken care of? 2. Where do you let it wait also at BMW and what are your experiences regarding competes? nz and prices of workshops? Greetings