Early 1928 Model A Starter Bendix

Looking for a Early 1928 starter bendix that fits a 1/2″ shaft on the starter. So far, I have not been able to locate anyone with the bendix since they are not reproduced and must be an original. My early 1928 Fordor Leatherback is not able to be driven until the bendix is located. Would appreciate any help in locating one.

Perry Daily, plda2@PVTN.net