Approximate displacement: 2 cubic meters (~2000kg or 4400lbs)

Hatch top is 2.5 feet from the water line, per ABS spec.

One dome viewport, one cylinder style veiwport.

Only rear seating position has a hatch, the dome doesn't not open.

Seats would probably be made of cloth and hung "hammock style"
so they be easily moved out of the way making it easy to access
the front seating position.

Front seating position is for the viewer/guest, the rear position
is for the pilot, the idea is the pilot sitting slightly higher
to see more.

Controls would been to fold away so they do not inhibit passage
to the front position.