Rear subframes are prone to cracking, so check that out thoroughly. Discs and pads are expensive to replace, along with tires if you buy the proper Continentals. Make sure the running in service was carried out (1200miles), It's not a hugh issue as any problems would have raised their head by now but it could affect resale. SatNav is usually worth an extra grand. If the wheels haven't been reconditioned expect them to be tatty as salt/ water messes them up.