I finally decided to try Windows XP Paint to draw the rigging. That actually worked about as well as you could hope for, given that we are working in a raster or pixel world, not a vector world. Anyway, you can judge if this was successful. What will help is that I intend to reduce the drawing to either 1/1200 or 1/3200 scale, depending on the application. For use in Iain Stanford's General-at-Sea, I will reduce this to 1/3200, so most detail will be lost. At 1/1200, you can still recognize some of the detail.