If you decide on the rattle can route, be sure to use a good epoxy spray primer, especially for Chevy or Chrysler orange. Those colors don't cover very well. w/o primer they appear dark and sort of muddy, even with multiple cans of coverage. With a good white undercoat, they pop and are very bright with a couple light coats. black and other dark colors probably don't need the primer.
In fact that goes for the base coat/clear coat route as well.