Since making the original post I have had a closer look at the building instructions for the "Showboat" design and realize that the designer suggests you build the little boat by laying out the plan view on the workshop floor and adding the side planking, the framing etc on top. Detailed building instructions are given for the whole and then finally it looks like oops! I forgot about the bottom. Then "add the bottom" are the final instructions. He has to be joking: build the whole boat including the side decks, the cabin, the furniture, the floor boards AND THEN add the bottom planking. How?
However it is a neat looking little toy boat that could become a small paddle wheeler by increasing the dimensions by 25%. Or just start again and use the general layout.
I agree she is not designed to be a steamer. While the cut-down bike power might not be everyone's cup of tea a four stroke industrial motor like the Honda does come with an optional 6:1 reduction. Reverse would need a gearbox or a system of using V belts like on the garden tractors.
Still deciding whether to build a 20' version of the "Showboat" or a neat little side paddle wheeler like the Traditional Boat Shop's "Minette".
See the link below for this design:
http://www.traditionalboatshop.co.uk/minette1.htmThis is a nice looking little paddle wheeler. The designer Glyn Jones is currently redrawing the plans for me and I will keep you informed of which way I jump. There are some photo available of this design which I will post the link is any are interested.
Rob
Rob