Most of the front grille mouldings are aluminum. I re-did all of the front trim pieces on my 68 RS, which does not have the large headlight surrounds. I found the best way to brighten up the trim is to first use a small hammer and punch/prick etc. to straighten and flatten any irregularities in the surface. You can then use sandpaper to remove pits and smooth out your hammer areas. Start with 180 grit and work up to 400+. Buff out the sanded sections using a buffing wheel and various compounds. A rubber sanding block comes in handy. If you need to paint in black sections, you can mask, or cheat like I did. Paint the whole thing, then using a paper towel with laquer thinner wipe away the wet paint on the areas that should expose shiny metal. Usually these areas are long and thin and are easy to handle. Once you get the knack for it they go quickly. It took me a day to do the front grillwork and a day to do the RS side mouldings. The stainless mouldings can also be sanded/buffed but are much more difficult because they are made of a harder material. If you buff the stainless be sure not to get it too hot or it will bend. The best thing about re-doing your original mouldings is that you know they fit and it is much less expensive.