Thank you for your generous comments, Cary. They are very much appreciated.
You're off to a more promising start than anyone I've seen try to do this so far. I salute your tenacity to stay at the job of trying to visualize what is a complex shape that's publicly documented in only two views.
an aft view however, done at the time the original inks were done (to work out that aft that is just visible from the side), but it's done in 5H pencil-- not really scannable.
What it shows however, is that the aft is not quite as rectangular as you've got it -- more ovoid that flows in a fluid reverse curve into the pylon. The whole thing was a study in curves because I was playing with a big set of ship curves I'd just bought and got inspired.
I'd be happy to use Illustrator to sketch the aft that I've got, if that would help. There are also details about the bow of the secondary hull and how it integrates the deflector that aren't visible at all from the available views, that I'm willing to help you with if you'd like.