Anyone use TCP Global Plum Crazy Paint?

It's really tough to get a match in purple.
Had my 65 GT done in Plum Crazy.
Got some cans for touch up...nope...
got another case for touch up, close enough but no match.
There's so much metallic in the paint it's practically impossible to keep shiny.
In all my years of junk yard searching, every car I ever saw that had been factory plum crazy had been repainted to some other color. Probably because of fading and dulling.