@ Jim Wheeler.
I replied to your email from some time ago but haven't heard from you. Maybe your spamfilter is set so that hotmail doesn't get through or something so I'll try it this way.
I'd really like to see some photo's of your hull (Scale Shipyard is it?)
I do have planes for a Walrus class submarine. It's a plan made by the Dutch Navy. It doesn't show any fine details but I have a shipload of photo's including photo's that show it docked that do.
If you're interested I can order you a drawing and send it to you or you can contact the Dutch Navy yourself.
You can order the drawing for E11,34 at email@example.com
with subject=Modelbouwtekeningen MARHIST-site
Send them your name and adres and they can supply you with.
Some photo's from the Dutch Navy website for inspiration