RE: New Hardened Steel Clutch Bell Pinion Gears - CEN Gen, Nem, GST
Theres an Italian guy on Ebay already producing these, has been doing for a while now. I think his username is/was toto.
Maybe worth a look to see if he is still about?
I contacted him re some steel pinions for the FF, but there wasnt enough interest back then... bet a few people would have them now.