Hello all... first post here. Great source of information for non-modellers as well!
When you are looking for interior views of ships you need to look for "Inboard Profile" and "Deck Views" (Floating Drydock categories A, C-E, G-O)and sometimes "Plan View". The plans of US Naval Vessels that best suit 3D modeling are called "G Series" by Floating Drydock, and are historically known as "Booklet of General Plans". These are detailed blueprints that depict the subject vessel by deck (sliced layers) that are highly suitable for hull lofting and deck creation.
Where can you find them? The best source that I know of for free plans is here:
http://www.hnsa.org/doc/plans/index.htmThe next best source is to contact the US National Archives and make a request for specific plans is from here:
http://www.history.navy.mil/branches/org11-3.htmAfter that you need to scour the internet and look at going to sources like Floating Drydock or The Maryland Silver Co. and buy them commercially. As an aside, the cost of these plans is somewhat high, but they are less expensive than going directly to the photographic sources listed above. The archive services charge a premium because they pull the originals and transcribe them for you. I ordered a set of plans that cost me $200.00... worth it to me, but EXPENSIVE none the less.
Hope this helps!