Hey guys, thanks for the education on the nitro.
Learn something everyday!
A company that worked wonders with that type of paint and still made it up to mid 80's was a company called "Belco" they were at the time OEM on the rolls and Bentley. Sprayed like lacquer but looked like enamel -dried fast with a gloss.
The trick was if it matched you did not dare buff it or it would change color.
If it did not match you buffed it and chances are it would match.
It was fun to spray and easy to use. Only Rolls repair could get it in states and it was a premium back than.
I don't know if the company is still in busines or not. English company if I recall?