These are a couple of photos showing the stages I use getting rid of the paint for the polished surfaces
This is what it looked like after paint

Sanded using 400grit - got sick of 2000 and 1200 taking so long to get rid of the paint

Then used 1200 to get rid of the remaining paint and of course 2000 at the end

This photo is just to show how crisp you can get an edge when you sand the paint off rather than mask up to the edge

 
I fitted the two wheels with tyres on to the car and took photos


 
Cheers

They look real sharp mate

Very smart, good contrast against the nice paint job and highlights your chrome work around the doors.
Len