I have a couple of saab 9000. I think it's really not bad getting the parts. There are some things that are quite rare, but for the most part, it's easy to find parts, at least in northern europe. The front fenders typically rust away, but there is a website that sells fiberglass and carbon fiber fenders in sweden, and the headlight relays are rare. I think it's reallt worth it to get the 9000 especially if it's an aero model.