Howdy Kurt,
First, welcome to the forum, we are glad to have ya here.
Now, I am by no means a builder of submarines, but, after seeing your post, I decided to look in google and see what I could find. Well, I didnt find much lol. But have you tried ebay?
Or, have you considered scratch building a sub? If so, i found this link with lots of information that you might be able to use: Russian Typhoon Submarine Plans.
Sorry I couldnt be of more help, but maybe someone else will be able to do more for ya.
Have a good day and again welcome to the forum,
Greg aka GEEDUBBYA (GW)