Pioneer CS-99a FB

Thanks in retro with all the help in connecting a sub to my new 1280. The receiver did come with some beautiful Pioneer CS-99a’s FB that are lacking one midrange (Pioneer 10-708f-1). Does anyone know any other site besides eBay where I may find one? I do have the functioning old one with torn cone and pushed/dented/beat dust cap should anyone know of a repair service through mailing. Thanking everyone in advance from Detroit area. THANKS!