15” wheel question

ok here’s my problem, my 66 has 14” wheels and the 9-3/4 poverty cap. I want to use a 15x7 wheel but the wheels I have are the smaller 8-3/4 (later model) and bigger 10-3/4 circle (the diameter of those nubs that hold the cap on). Was there a wheel made in 15” that had the middle size nubs? Maybe in the 63-66 years? I didn’t see anyone who made aftermarket ones.
Mopar didn't make 15" wheels for small bolt cars. You will need to contact places like Wheel Vintiques and ask if they have centers to make it happen. There is a guy that vends at The Nats that goes by The Wheel Guy that combines centers and hoops to produce steel wheels in different widths.