What we need now is a program for building 3D ship models

If you can design your own ships, the next thing we need is a program so that we can conveniently build 3D ship models, working at an abstraction level above the 3D modeling level. We don't want to have to bother with the details of 3D modeling, but would like to enter specs, and perhaps drag and drop components. There would need to be a way to specify new components, and perhaps doing a little "lofting", and that would be it. I would guess that this would not be a trivial effort. The only good thing about it is that the components would be limited. It is not like we are trying to build a general-purpose 3D modeling tool, useful for all things.