I figure I should let folks know what I've been up to, and how far I've gotten on the Oiler conversion to CAD plans. I started with the line drawings, and plotted the provided hull contours. Placing them into a 3-d space according to the 2-d plans, I was able to generate a full hull form (a mesh, for those who know 3d modeling and CAD). From that, I am going to generate actual ribs.