Before and after.

Note condition of exterior bare metal in second photo, upper right corner, after applying paint stripper, paint thinner wash, phosphoric acid, and paint thinner wash. After painting, bare metal was coated with RPM wax.

As for the interior, just immediately wash off Evapo-Rust with paint thinner, and carefully inspect for debris around the heads of the hub bolts. Those same hub bolts may be available from AMKproducts.com if replacement needed.