Moondust silver is quite a light silver, especially compared to others such as Machine Silver.

I'd go with the ClearKote Vanilla Moose Glaze as your polish as Alex recommended, but then i'd be tempted to follow up with Poorboy's EX-P and finish with Optimum Car Wax. I've found this to give a great finish on Moondust, and is a different line up to something that i'd use on a darker silver, like Machine.

Gareth