I have one driver side quarter molding. It's new, but I've had it for years. If you want it you can have it for $25 shipped.
Another option is to use aftermarket moulding. I've seen some that look really close to the stock moulding. The biggest thing is that the stock moldings are terminated on the ends with smooth caps whereas your aftermarket ones have to be cut and so consequently don't have as nice of an end on them. Body shops should have access to this kind of moulding.