65 Riv Road Wheels and body mounts

[Yellowriv]

I have a 65 Riv and would like to purchase a set of correct Road/Rally wheels in good condition with caps.

Can some one tell me if there is a code on the wheels which will identify whether they are correct?

My car is an excellent low mileage one, however some of the body mounts, rear ones particularly need replacement.

My questions are, are these available? and if so, as a job it looks like with the bumper bars off we need to raise the body about half an inch to fit new ones, assuming there aren't any tricky long bolts to deal with. Is this correct?

Thanks

John