For the plastic bits? I used HyCote acrylics, the plastic primer and gloss top coat. Never bothered with laquer. Make sure you prep the hell out of it - it has to be scrupulously degreased, clean and dry, or it will look crap. Degrease then wash with Fairy liquid. Dry then key surface with OOgauge wirewool. Clean dust off with Meths-soaked rag, allow to air dry then spray as normal. Thats what I did, after cocking it up the first time - no peeling after 30K miles.
