This is pretty easy. Testor's Model Master has all three of those colors, which are correct for Measure 22. At least a couple of those can be found in acrylic; all of them in enamel.
I buy them on Amazon, who sells them from Scalehobbyist.com. Or they do too.
I would say if/ when you find the paint, buy two each of 20-B and 5-N, and four 5-H.
I buy four at a time, because well you never know if they will become no longer available.
I like the way they look.
Nice model, be sure to keep us all up on the build.
BTW what is the clan? Mine is obvious, family from north of Saint Andrews.
One more question- what ship? USS Morrison was a square bridge; yours is round.