The GG spaceship will be a custom-built SpaceX Starship.

It will have 7 floors, each one 8 feet tall. The bottom floor (1) will have the airlock and lots of storage.

Floor 2 will be additional storage.

Floor 3 will be crew cabins (45 of them), spaced around the perimeter of the circular floor.

Floor 3 will be a shared dining and exercise space, that will double as a meeting area.

Floor 4 will have more storage

Floor 5 will

Floor 6 and 7 will have the flight deck (with 8 chairs for the crew, and lots of control panels).

The internal diameter of lunar starship will be

The ship will be called "the Irwin", after one of the members of Apollo 15 (James Irwin).