I was going to do the spray faux chrome method on mine
(68 RR fiberglass bumpers & alum. bumper brackets, alum. bolts)
never got that far, I'll get to it someday
I was sort of pissed at the supplier (Unlimited) of the fiberglass bumpers
they need a shitload of prep, more than the normal stuff
have to fab in some running like supports
& straighten some of the cuts & holes
It's just not really high on my priority list at the moment
I was going with black chrome too
chrome paint over a black base & translucent black chrome clear
I've done it before, looks OK for a racecar
or not a show car
it's like almost IIRC 60#-70# less
vs all the OE bumpers & steel brackets, bolts
then I can put weight/ballast, exactly where I need it
car is no heavier than I started with
may not even need ballast either, win win
I took a lot of weight off the front, alum & fiberglass stuff
vs iron & steel or brass, battery PS in the back too
so it will have more of a rear weight bias,
than stock ever was anyway
I've seen a couple of fiberglass bumpers,
with faux chrome, they did with rattle can paint
didn't look like show chrome, but not hideous for a racecar
there are some good chrome paints out there
just need to do a search