Pitting chrome, how to repaint

I have tail lights on my 66 dart, that have the chrome body. It is badly pitting. I want to sand it smooth and then paint it black. What do I need to do to make it all work? And to make sure the black paint doesnt start to flake off. Is there a certain spray paint that is designed for pitted metal on a car?

BTW I have rear black out (and front), the previous owner had removed all the trim and painted it black. This tail light I found needs to replace one of the current damaged tail lights.

I am talking ghetto here, not air brush stuff. I mean can with a rattle ball in it. Thanks guys.