Sure...here are a few more photos......
This photo shows the skeleton frame that I made to do two things: ensure that the shape of the casing was correct and to provide support for the deck gun and conning tower.
Note that this skeleton piece as well as the others seen in the next two photos are attached beneath the hull lip.
This next photo pretty much shows a bow to stern view of the set of braces used to ensure the casing was correctly positioned in terms of width.
All of these pieces are held into place with 2-56 flat head machine screws that are countersunk into the hull lip. The deck sections sit on top of the molded in hull lip. In order to represent the correct look of the prototype, I glued 0.030" by 0.060" styrene strips along the upper edge of the casing. The goal was to replicate the look of the area where the edge of the deck met the casing. The casing sticks up beyond the deck...sort of like a small curb. The next photo shows a how the styrene strips look prior to finishing and painting.
I specifically used a stainless steel deck as it does not need any support beneath it except where the conning tower and deck gun are located.
To gain access to the dive module, I remove the deck sections and then these braces. The dive module is then inserted/removed through the larger opening area of the deck gun.
Note that there are *no* internal bulkheads....none are necessary if these horizontal braces are used. (the one 'exception' is a very small 1/4-sized bulkhead that only serves as the foundation for the forward end of the prop shafts. The dive module sits on four rubber pads glued to the inner bottom of the saddle tanks.
As might now be inferred, all six deck sections are removable. Here are two photos showing some of the ways that the deck was held into place.
Finally, a photo showing the extreme bow where I used a piece of my favorite material (G-10) to fix a very minor skew in the bow. It also served as the anchor for the capstan and forward set of bollards.
Hope these photos help. Please feel free to ask any questions that might come up,