@ TimothyC: Your first suggestion was the winner for a completely double ended configuration, offering the most capability of the designs by far. Hopefully, everything is in the correct place. With the gunnery fire control egg, there wasn't enough room forward, so I had to settle for the option for placing one on each side of the mast, but as I understand it, they can do more than direct the guns, so there might be minor benefit in that arrangement.
Uploaded with
ImageShack.us