Wayne,
The white paint scheme should be no problem. The AMA rules state:
8.1.4. To receive bonus points in any class:
a. The color of the model must be similar to
any military-type aircraft paint scheme.
and
8.1. A scale model of a carrier aircraft of
any nation, provided it displays the national markings
of the using nation, shall receive bonus points.
That leaves it pretty wide open. My Vampires are white, the only question I have gotten is the markings. I put Australian markings on one and Canadian markings on the other. I was able to document that there were versions of the Vampire flown by both of those countries so that was not a problem. I have also seen all white versions of MO-1's.
Good luck. Hope the plane flies well, it sure looks nice!
Bob