Doing something very similar but no chrome.
Scuffed up, washed up and painted up with Rustoleum Ultra High Temp.
Tried it first on my wife’s thumper and it’s holding up. This is a low gloss black. They also make it in flat.
Nice thing about this paint is over time when the finish gets chipped with rocks and such, just light sand if needed, wash and dry, mask off and paint... As good as new.