Hi guys
Will try to get a "back end" shot on there this weekend. Basically I cheated. Rather than doing an intricate paddle wheel, I made a circular tube. covered it with plank-effect plasticard, so it is a covered wheel.
My rules "gunboat Diplomacy" could be made available once I tweak them and expand on some of the stuff in them. Of course, if I do, I will post here to let you guys know.