This is all damn good stuff
Looks like making something in foam then laying up fibre glass on it seems favourite. Will look out for the John Dickens book. I need to get the design figured out in my head first then see where I go from there. I have welded up the support frames so I can start to define a load of fixed points, I can then work out all the curvy bits from there. Thanks to all for your valued input.
Dave.