well if your going to go the resin route i would suggest using the same resin you used before. i guess epoxy in your case. Ive messed around with the homedepot resin which works well too.
if your going to paint it ,any spray paint should work as long as you rough up the material and use a primer according to the directions. A semi gloss in the end might help pretty it up a bit more.
RedGtiVr6...yes rediping would help even out those cracks, its basically the cheap and easy way out.
you might also be able to get away with sanding it down and then spray some clear coats over the bezel. Remember to clean off the part before spraying it!