It appears I spoke too soon Bob. I've commented a couple of times on this and other forums about the atrocious quality of the drawings that guy provides where others have had problems. He's been doing it for years for a number of boats and it's a real disservice to modellers. I can understand your frustration.
I did use the Aerokits drawing to do mine. I'll start having a look at the superstructure drawings as that might be of help to you in working out the shape of the top of the bulkheads, including that for the cabin and relative deck levels due to the shear.
Will have to be careful though because I have to print out at 133% to give 1:12. For some reason, which I forget now, when I scanned the drawing some years ago they came out smaller. Not a problem for me as I'm working off one drawing but could lead to inaccuracies for you as you are working off mine and the kit drawing.
Have you tried positioning my bulkheads against the kit side view to see how the deck, deck stringer, chine and bottom of keel compare?
Chris
Edit: I started my post before yours but was then interrupted by a late tea so some of what I've said may not apply now. Something else to check, apart from Bulkhead No. 1 which we know about, do the other bulkheads on my keel drawing match up with those on your kit drawing? Reason I ask is that obviously any difference will impact on the position of the deck, stringers and chine.
In theory
my drawings, apart from the roof of the aft cabin, should produce a model exactly as the Aerokits as that was the drawing I used for mine, notwithstanding the superstructure on mine lifts off.