Gauge cluster restoration?

I would like to go through my cluster. The lenses are a little scratched up and just "old" looking, anyone know a good way to clear them up. What is the best way to clean up plastic parts without damaging anything? Anyone used those white gage kits and/or a different back layout like they sell on ebay and a few different companies. Best way to paint the trim around the guages, or any other detail work on the cluster. Model paint? just need a few tips, thanks