As you didn't state it explicitly, I assume that you are talking about technical drawings since they give the best overview.
I took photos of the conning tower since I have no scanner at home.
All images are from the second book of Rössler's "Geschichte des deutschen Ubootbaus", thanks Mr. nikimcbee for pointing towards the right book, saved me a lot of search time!
http://www.mediafire.com/?c2h6a1dbizshdmh
PW is subsim