Nice.

I've used the same Copplestone figures for my RN company and, like yourself, was planning to include a surgeon. I can't see that anyone will have an issue with that so I think I'll use the Artificer stats with the Medic talent instead of Engineer (both are 5 points). Obviously he won't get access any of the Tiff upgrades.
A few RN slang terms you may like to make use of: Artificer = Tiff, Medic = Scablifter, Midshipman = Middy or Snotty, Diver = Bubblehead. Officers are often known by their rank insignia so a lieutenant is called a 2-Ringer.
