[78 Chevyrado]

I've never heard of just the stamped emblem for sale alone, I think they only came with a grille. I saw somewhere in a recent thread somewhere, someone had that same grille as you and just painted the whole metal part of the emblem yellow/gold. I think it looked good. As far as the grille just scuff up the surface and get a good primer for it and then paint whatever color you want. if it's pitted use some glazing on it and then prime it up.