I know that the Seeker recommended paint colors (Rustoleum Royal Blue for lower cheeks and Krylon Short Cuts Ocean Blue for mandibles) are difficult to come by these days.
I think I may have found a substitute for the Rustoleum Royal Blue - it's another Rustoleum "Night Tide". It's very close to the Rustoleum Royal Blue.
I'm hoping someone can do some tests and see if I'm right. I took a pic of the can and will try to post it up.