This is really good. Can I suggest another alternative for loading the second cockpit? Without accounting for the Control Rooms and ADA cockpit (which you did really well), here is another possibility (sorry, I have crap for graphics editing),
View attachment 359661
Orange is the boundary of the built load queue.
White is the entrance through the port docking ring.
Purple is the path to enter the normally positioned cockpit (C-turntable on your diagram).
Red is the location of the secondary cockpit (D-turntable on your diagram).
Blue is the path to load the secondary cockpit.
Green is the location of the new corridor hatch we have seen pictures of.
Not to nitpick, but the diagram I used suggests a slightly larger diameter than yours in order for the circular hall to align with the portside entry hall. The exits and control rooms could be similar to yours, but I haven't accommodated the ADA cockpit. There are also a couple of additional details I didn't think of to make this more believable, but I think it could work.
Thanks for your effort--it really made me think!