I've stuck this pic in another thread too, but here it is again.
Ok, i came by these via that jolly nice chap, joe.
I've stripped them down and used nitro stuff to remove the paint and lacquer, but there still remains a large amount of nasty black looking surface corrosion type crap! Does anyone know of a way i can bring these back or do i need to have them diamond cut? any advice would be greatly appreciated!

also... do you guy's think i should colour code the centres or have them in black? (my car is pearl grey LA7U)