Spent a little time computer modelling the ship. I'm a newbie to 3D CAD, but did a lot of 2D way back in the late 80's so this wasn't completely unfamiliar but boy have things changed. I grabbed a freeware copy of Caligari and a couple of hours later managed to come up with this.
I hope to use this model (eventually) to be able to scale the model and create unfolded templates to help me make variants of the basic shape and scale. Quite a lot of learning to do before then though!