Re: Paint question.
are you refering to real gold plating? I do not recomend for anything used regularily It will look horible after a while.
the primer will affect the tint of the color
my favorite was using a candy blue over a black base to give a purple shade that no one could duplicate for my old customs.
use the gold metal flake in the clear or in a medium over the paint & for a contrast think about red flakes & gold flakes? there are many shades of flakes you can put in the clears.
I am old school but I like black rims, black hubs with stainless spokes & a stainless disc would look good
now as for gold plating? think about bars, seat post, clamps, I would go mostly black with gold bolts or chrome or stainless bolts... take stainless bolts grind the proof markings off the head & polish on a buffer. no rust & look like chrome.