One thing that no one asked is, how old is the headlight housing? There are VAST differences between a good triple-plated (nickel / copper / chromium) chrome job and what manufacturers are using as "chrome" over the last few years ... doing it the right way will last decades while the newer chrome will often pit, flake, delaminate from the substrate and come off in sheets within only a few months of manufacture. I've even surprisingly removed it just with my blow gun more than once.
Yesterday I finished up an old (80s I'm guessing) Hurst four-speed shift lever that was originally well chromed with the nickel and copper base. It had been either repaired or heated up and bent at some point in the past (note the discoloration near the bottom). The bezels are pot metal.
I lightly blasted it being careful not to cut through the copper -- it makes a beautiful base for powder -- sprayed out some gloss black and finished up the logos with a metallic light green to match my customer's interior.
It can be done!