User blog comment:WolfgangBSC/Wolfgang's Random Chat Room/@comment-10905876-20150304151859/@comment-12161342-20150306181942

Shinano sank on its way to being fitted out, but it was not in the harbor. I have no idea where on earth you are getting "sunk in harbor en route to being fitted out" from, since I know of no ships that fit that set of circumstances. Closest was shinano, which was sunk in the inland sea.

http://upload.wikimedia.org/wikipedia/commons/b/bd/Japanese_aircraft_carrier_Shinano.jpg this may be the pic you are looking for.