I've had great luck with Duplicolor rattlecan paint from the auto parts store. It goes on well and dries quickly. It's a laquer. I also like their self etching primer. I cover all of it with 2 part rattlecan clear from the internet. Search for 2k clearcoat. Everybody says the clear is nasty if you breathe it so use proper precautions and a good quality mask with filters. I've found the stuff to be very durable and have a nice glossy surface.
As far as interactions with other types of paint, I've only tried Duplicolor applied over powdercoat and the 2k clear over Duplicolor and also over the powdercoat. In all of those cases there were no bad interactions and the clear is nice and glossy and, so far, durable.