Put some of the gold foil on a scrap piece of plastic, spray it with the paint you intend to use and see how it does. This should also allow you to see how much burnishing it can stand once they paint has dried.
This is way outside of my wheelhouse, but thought I would try something different. Will be finished in Deltron DBC Vapor Blue. Undecided about adding stripes, if I do, they will be silver.