I have a brand new Indian sprocket/drum bought in error. It’s a 3-vane, 38 tooth one and mine needs a 4-vane one. Apparently suits half-width hubs. I can send a picture...
If this would help, you could make a small contribution to my rebuild fund and I’ll send it to you!
If interested, text me 07557 907509 or email stephen[underscore]herbert[at]btopenworld[dot]com to continue the conversation!