[Avatard]

Consider using lacquer. I believe Duplicolor has what you may need.

You can spray a few color coats, color sand [wetsand] between them, and then clear coat final, then wetsand that and buff it out for a flawless finish...with a rattle can.

With lacquer, if you goof [get a run, or whatever] just sand it out, hit it again, and keep going.

This is paint, not fucking rocket science.