Removing Mirror Glass for Powder Coating

How much scuff does the parts need; scuff pad, 320 grit paper, etc? Also, will powder fill and self level in scratches and small pits? The reason I ask is because the chromed surface on my vent window frames is slightly pitted. Leanna I appreciate all the info you have given me so far. You are indeed the Queen of Mopar!

320 grit isn't really going to do much as far as surface prep (but I'm no painter) -- I'd probably start with 120 and limited pressure. If you decide to try the powder coating, powder will self level but if it's done right (2-3 mil thickness) it will NOT fill in imperfections or pitting. Clean up your metal the best you can first before roughing up the overall finish regardless of whether you paint or powder it.