I once looked everywhere for someone to recone a 120FR, but every shop I tried told me that Stephens used an unusual sized voice coil, and that they couldn't get parts for a recone without going to a specialty place where they could be custom made. And that is spelled with big bucks. It will be cheaper to buy them on E-Bay, but you need to exercise a little care in choosing the pair you buy, and the vendor selling them. They are truly NEAT speakers.
PS. Maybe Gordon Waters can help. Try giving him a PM.