"it would be a case of reinventing the wheel, I would have to go thru a trial and error process from the most basics of how to paint the flat"
We have all been there!!
my wheels always come out with a flat here and a bump there hahaha
Have a go Ray you got nothing to loos ;)
I painted Raoul de Lorraine in 90 mm size 18 months ago .... same heraldy!! (He died during the battle at 26)
(https://i62.servimg.com/u/f62/19/31/59/25/raoul_10.jpg)