Editing Painting chrome wheels

I have a set of Chrome Wheels that I want to Paint to match my Vehicle.

I am unsure if I should use an etching primer or epoxy before a urethane primer.  What proceedure would anyone recommend?

I was going to try teh following:
- scuff chrome with 120-180 grit sanding sponge
- etch prime (Varaprime 615S)- 1 coat
- urathane prime (PPG k36)- 2 coats
- sand 600grit
- basecoat (PPG Evirobase HP) - 3 coats
- Clearcoat (PPG DC3000 or Dc4000) 2-3 coats

Any thoughts on my procedure?  What if I need to use of polyfill (or other)... will this cause a problem if I apply an etching over it.

Thanks, Scott