Sorry to dig up an old thread, any updates? I've been wanting to model a Metrolink F59PH, though I was going to start with the Athearn F59PHI. I did however model a F59PHI once recently, and I found the blue on the unit I was modeling was more blue then "periwinkle" as Metrolink states it is. Pick a good prototype and stick to it! I chose Testors Deep See Blue for my blue, however I have no clue as to what to do for the more Periwinkle.