Here is the rest of the exterior mapped and a good start on the interior of the docking pod. I've given it three landing areas. It is a big hangar. There is one large cargo door in the center and two smaller ones on either side. The four side alcoves are meant to be roll up doors that cover equipment bays.
A bay this large would be difficult to pressurize. Perhaps the alcoves contain docking travel tubes. The original drawings do not indicate any type of door. Perhaps this was an early example of a semi-permiable force field. Any suggestions?
There is more detail to add to the hangar, as well as markings to the exterior.