it's pretty hard to find like gold colourways for boards.
I remember the rama thermal had a gold one (but that's mostly because rama messed up the original colour which was supposed to be matched to olivia actually, it was the rosa colourway) I guess that's an option, but never buy from rama directly unless you want to start a money pit.
You could always cerakote, there is a probably a cerakote option for you as well.