I am looking at purchasing a 1995-1997 Discovery in the $4500-$6500 range. What do I need to look for? What is considered high milage? And what kind of milage can I expect from a LR that has been taken care of? What are common problems with vehicles in the 100k-150k range (that seems to be the milage on most of my price range). And last are the LR's easy to work on for someone who is mechanically proficient? Thanks.