There are some things an amateur painter like me can do that a professional like Stuntman Fubar (Dave) can't.
I can skip bondo and glaze, spray bomb high build primer outside in windy conditions, let it build up rather than sand between coats, not let it dry more than 10 minutes before spraying on $9 gloss black from a spray bomb in the same windy conditions, tolerate a few runs and thin spots, and say "good enough for that customer."

Peace, Primer & Paint, Dennis