You get what you pay for pretty much. Unless you plan on throwing cash at it get one thats in very good condition and has been looked after. Also I'd try and get as newer one as possible, problems tend to come with age. I was originally looking at buying an R32 but found it hard to find one in good condition (by my standards) so i went to R33 GTR, started looking at 95 models but ended up buying a late 97 model.