Prepping Rallye Wheels for Painting- Filler for Pitting, Dings and Deep Scratches?

I'm thinking about doing my wheels soon too. I agree with using a similar process as used in auto body although you don't need to go to the full extent. A 2K epoxy primer or DTM primer would be ideal although I will probably just use a 2K primer that I already have. I have used body filler before for deep scratches or to fix road rash. There is no need to block anything . There are no flat surfaces anyway and most everything is behind the trim ring. This process will be much better than what the factory did. A 2K single stage paint would be better than a spray bomb although I will probably just use a spray can that I already have. Its just a wheel that will live a sheltered life :)