Gents

I have a bobcat in the new navy scheme, my plan is to sand, fill, prime and eventually respray the joining seams i wil do the underside of the booms first as I am a complete noobie when it comes to these techniques, and if I **** it up then my handiwork should remain unseen[:-]
My question is regarding clear coating, is a two coat technique ('dusting' followed by final) necessary or as the finish is already shiny is just the final coat sufficient? any guys with paint and lacquer experience your hints and tips would be greatly appreciated.

Thanks

Phil.