First, I'm not a painter, but I can paint. A little. My Kid taught me well.. I'm *guessing* the RM is a base coat with a "candy" coat over it. Sure, it can be duplicated by someone with a good eye. The scanner Al is talking about will get you close, but it takes someone with an eye to get it perfect. Normally, it's a woman. Without women, there wouldn't be any colors like puce..
Decals are easy with photographs, vinyl cutters for either paint masks or stick on.
The KId found this Spot laying on it's side on the floor of a barn, crashed. He repaired, painted, and made the Spot decals, etc.
2016-08-03_05-31-54 by Charles Stottlemyer, on Flickr