I have converted the Gardner offsets for Grant guideboat ribs and stem to CAD pdf files. These files are available at no charge from me by simply supplying your email address via regular email or a forum private message. The files are not large, but when you get them to a print shop like Staples or Office Max, they will print out full size on 24 x 36-inch paper for a couple of bucks each. I have successfuly glued the drawings to 1/4" plywood and cut out the patterns, and used them for making bending forms, locating seat locations and sheer, and other useful applications. Sheer marks are shown for both 14 and 16 foot boats. A reduced picture of the rib drawing is below.