We built ours from a kit, so I don't know about the plans.  I can tell you that the pieces were in the kit and did make it into the boat.  Tracin' 'em off the bulkheads should work, if you can determine the height somehow.  I guess dry fitting the bulkheads with the forward seat would yield a measurement for that.

.....Michael

Thanks, Michael.  I placed the bulkhead into the thwart and traced the profile onto a piece of paper.  I then traced that onto masonite and cut it out.  I then compared that profile with all of the bulkheads and while not perfect, they were all within striking distance.

I think I'm going to go through the three large sheets of paper plans and make a list of each part on each sheet and make a spreadsheet and publish it here for posterity.