Charles, There is an ad on L.A. Craigslist for '61-'64 wheels in Woodland Hills. You might also ask the seller in El Monte who has the '61-'64 convertible frame for sale if he has any wheels. I have bought parts from him before and he parts out these cars pretty regularly.
Check auto parts for sale on Craigslist.
Here is the wheel listing:
And the top frame where the seller probably has more parts: