Those turned out nicely - you'll have to post some pictures of how they look on the car, with the masking removed.
The covers can be removed and reinstalled if you work carefully - I was able to remove mine and only broke something like 3 of the 32 total tabs. I painted the fronts on mine satin black, and kept the rears as 'Chromeline', which matches the interior door pulls and steering wheel trim.
Having them off the car let me fully sand, paint, and then bake the enamel. Turned out a nice hard and smooth finish.