Oh I think you're talking about the English Wheel.
Gotta love those Chopper shows. OCC is my favorite (gotta love Paul SR).
But if you look closely at your fender you will see there is a lip which is maybe less than 1 inch high. Here is a pic of the rust on my rear fender, you will see what I mean by the lip:
I don't understand how I could just reproduce that shape, I don't think it's done by hand at the factory, it has to be done by machines.
How bad is your rust? Is it worse than mine?