Okay, I took, transfered, brightened, cropped , resized and uploaded some pics 'Just for You' :
Remember this model is not complete yet, so don't go criticizing my detail work yet.
But if you feel there's something Major wrong please let me know.
I've used similar setup on 2 other subs with no problems. This one is just more top heavy. It also has a video camera in base of tower that adds to top weight, but 1 of the others had the camera also, with no problem.
There's 2 WTCs, the ballast-chamber is part of aft one. The battery is between them under stacked foam and the small connector WTC, in center. The bow is also full of foam except where launchers are. The stern is full also except where the prop-shaft couplers are.
Click on pics to enlarge: