The GNX clone thing kinda bothers some people, but it may hold appeal to some. Depends where you live. if you live in SoCal, you can get a good amount for GN's (especially L.A., but the buyer is likely to throw some 20 inch IROC rims on it with hydraulics), but Im not too sure about the rest of the country. I would just go on ebay, recycler if you have it, autotrader, and get a general idea, and start at the top value and gradually work your way down.