Im confused why people go across country for organisol (or suede black, dash paint)?
I go to my PPG supplier and they have no issues mixing to the old book formulas.

Maybe I'm just fortunate that my PPG house has everything they need?

Is the goal here to use something other than lacquer with texture?

Or is it to find something thats looks correct but is more durable than the original?

Unsure that the 2 paint solution has the correct texture, but it does look pretty good, and remember that MOST will not be able to distinguish the difference.