Where exactly will the new buildings/doors go? I am adding a house or two to Rivet City for the 500 Rads, and I don't want any incompatibilties with such awesome and popular mods such as this one.
By the way, despite what I said about me cringing, I love your expansion mods, and will probably download yours as soon as it's out
I'm extending the lower deck using a new door in the stairwell - I'm occupying the space currently held by a locker, which I've moved out of the way. Off the top of my head, there was actually a blocked-off static door in the space I'll be using (I can't remember and I'm away from the PC with the GECK on it). It just made sense to expand the hull area as there would physically be more space there due to the shape of the boat.
The place where I'm sticking the door from the lower deck/stairwell is the most negotiable aspect of the mod because doors are only little and can go almost anywhere. It'll be trickier if other people start expanding the deck, though - that is where conflicts are likely to arise in future.
FYI my Homes To Let mod adds an apartment to the Market area, occupying the blocked off door at ground level.
I'll also expand the roof (deck) area. The mid-ship and upper decks will be untouched.