> As for the scale of the compartments, extrapolate from the size of the chairs. It's pretty small.

I got the exact opposite impression. It might be small compared to a mcmansion kitchen but it is HUGE compared to historic or even contemporary spacecraft. Way more spacious than the Shuttle cockpit at least.

If you haven't been to the Air & Space Museum in DC, it is worth it just for a sense of scale on spacecraft. In particular the interior of Skylab was much more cramped than I would have guessed.