I dont have a tip on the color of the silver but you take a look at some close up pictures in my thread below:
INTRODUCTION I got this from a fellow KLOVer without a PCB in May 2017 on my way to Allentown’s Pinfest. The sideart was damaged and had a bad discoloration from a Turbo Outrun sticker that had been removed. I was lucky that the machine still had the gas pedal. The dash had some pieces broken...
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To me, anything that is more gray instead of silver would be acceptable. Perhaps aluminum color, certainly
not chrome.
But, I do want to warn you that painting plastics is tricky for paint adhesion. I would investigate how to prep them before applying color, otherwise the paint may be chipped easily (don't ask me how I know, it is still frustrating).
I have found that applying a
2K clear coat after the paint will make the painted plastic extremely durable. I would certainly do that. But, these 2 part clear coats may be tricky to do, go thin with multiple coats, otherwise they may "run" (again, don't ask me how I know, it is still frustrating).
Best of luck and post some photos!
p