I tried stripping the chrome off of the rear wishbones when I was building my 23. I used a Da sander with 80 grit, didn't even touch it. I put it in my sandblast cabinet, just dulled the finish of the chrome but didn't remove it. Finally I took some 100 grit and hand sanded it as well as I could and just hoped for the best. I primed with etch primer, then epoxy primer, and finally the top coat color. I must have done something right because the paint stuck well for the 3 years I owned the car, no chipping or anything.
So I guess even if the chrome is still there, but scuffed sufficiently, the paint will adhere. But the right way to do it would be have a plater unplate the parts. I think they would take the job regardless of how big or small, it is still work for them to do.
Don