Painting is still painting - its just a topcoat over plastic. And you're gonna end up getting chips in it sooner or later.

With that said, just try to get the best prepwork done on it you can, and use SEM ColorCoat paint, I think its called. They make a clearcoat you can use, too, but I've found their clearcoat somewhat tricky to apply and still get a perfect look (I'm using their black paint). Then again, I'm no professional painter. I'm barely even an amateur.