I printed the layout of the panel onto transparent film and covered the areas for the displays with sticky tape on the backside of the film. Then I spray painted the back with "chrome" paint. It ended up more silver grey than a shiny chrome. It also "developed" my fingerprints that I got on the transparency so there are ugly dark tarnished areas on it. Not so nice, but I'll keep it anyways.
The transparency also got slightly wrinkled after being laser printed, I hope that it will not be a problem when I glue it to the acrylic.