Unusual Engine Colors

I know I'm resurrecting an old thread here but I am gearing up for another engine build (this time a 440) and am looking at "unusual" paint options. Has anyone found a good source for the Mopar gold used on the early big blocks? I also saw mention that some of the early industrial engines were painted yellow @pishta what would be a good brand/color for that? Really want to do yellow or gold with black valve covers and possibly intake manifold, I'm pretty burnt-out on orange, red, and blue and my Duster's 5.9 Mag is painted turquoise which I like but want something different.