Very nice! I suppose you will "unfold" things like the crane and print on cardstock?
Just a wild idea - have you ever looked at the paper pattern cutting machines (look like printers) that are available through some craft stores? I wonder how fine detail they can cut? If they are good enough they could be a perfect match with a CAD sytem for making card models.
Or stencils for painting.
Are you acquainted with any of the folks who do Great Lakes shipwatching? They post some great detailed photos of lake freighters. If you are interested contact me through my
http://www.okieboat.com Contact Me page.