How about a brand name. Since your Dad didn't paint any of the suits how would he know this? If it was Modelmaster that brand was not made until the early 80's and most of the suits were painted in 1978(Testors was around back then but not the model master line).
I definitely do not want to be an antagonist but please prove your claims with evidence/proof. We all do a great deal of research on this board and even with all of the time I have spent on this research I have still had to make guesses and since two of the original painters of the suit I have had communication with do not remember the colors only the brand and type of paint. Model master brands have only been mentioned by everyone but those two folks.
Incredible claims require incredible proof.
Lee