The Coin Toss assembly was not originally finished in Zinc Dichromate, as John Pop has suggested (well mine wasn't). I did see the actual finish on some nuts and bolts and it is a dull finish with a rainbow effect when held up in the light. The finish on the coil toss ramp is likely nickel, then brass with a clearcoat. But no one can say that this is EXACTLY what was done. Whatever method was used - it was cheap and nasty.
I don't have any real options that are feasible. GOLD plating is too expensive as is Brass and there is no guarantee that the inside of the assembly will "take" the bath process. The brass method will cost over $100, and most places didn't seem keen.
The main ramp will be replated in a "gold finish" - obviously not real gold, but I saw some of the gold plated parts hanging in their shop and it looked amazing.
I'm still not entirely convinced, but I didn't do anything with the coin toss assembly, but the main ramp will be re-plated.
I can have both Chrome plated, but I wanted the gold finish.