Well this gave me enough to get started. I think the PVC is the way to go. I can get both 1/2 ish and 3/4 ish materiel ( it all seems to be metric which is fine). I might buy some sheet materiel so I can glue on laps or battens. I need to get started printing windows. Lots of windows.
But thanks for the advice. I am much more comfortable building this out of some plastic materiel that is robust instead of wood. I like this direction a lot better.