In this age of digital computers, scanners, and printers, it is pretty easy to rescale drawings, so look for drawings in any scale and resize them. I often find drawings during a google search by specifying object I want, plus the term drawing. Now, this will result in some artists sketches and renderings, but it has turned up many three-views for me, of ships and planes.
Unless you have the final drawings printed out professional, a 1:200 Bismark will exceed the paper size of most affordable home printers, but you can break the drawing into sections that will print out on 8.5 x 11, or 11 x 17 sheets, and you can then glue them together onto a sheet hardboard or foamcore.