I do not believe that such a manual exists; a search undertaken several years ago failed to turn one up. I can, however, list relevant links from my own reference library. As of this writing, all links are active.
There is a discussion with details to images added in as the discussion progresses in this trekbbs.com thread
. The final composite blueprint
is of a B’Rel, with both humpback whales and a targh included for scale. What it does not include are those mundane details that make or break such a project, such as food storage systems, the armories, where the crew sleeps, where the water reclimation tanks are located, and where the heads are. I don’t care how much of a superwarrior you are, you cannot get through a weeks-long mission without clean water, nor can you “hold it” until you get back to base.
The Star Trek LCARS Blueprint Database
features multiple external diagrams; scroll about halfway down to get to the Klingon ships, and down to near the bottom of the page for bridge schematics.
In addition to QoghtlhIH'u's link to images and detailed descriptions of different Klingon ships, Ex Astris Scientia features several BoP bridge illustrations
There is a sloppy (bridge? engineering?) computer display panel posted here
, followed by translations and commentary.
There is also a poster of a partial cutaway of a BoP with parts labeled in thlIngan Hol
available through SciPubTech
. The resolution is so poor that I can’t tell what I’m looking at. It may or may not serve your purposes.
I have a copy of the FASA Klingon Ship Recognition Manual (see attachment at the bottom of the post), which I should eventually be able to retrieve from storage, scan scan in, upload to my image hosting service, and link to full size if anyone is interested. Note the use of the subjunctive. The Consulate is in the midst of a major communications “upgrade” that seems to be causing more problems than it is solving. Why this always happens when I’m facing a deadline I’ll never know. In grand Klingon style I’d suspect sabotage, but can’t come up with likely suspects. I also have a long-held obligation at an upcoming con, so it may well be a few weeks before I can make the closer-to-full-cover size image happen. Click on the attachment to see it in a slightly larger size.