I get dizzy just imaging doing something like this. Great stuff.
Is there any way to get an estimation of the square footage for the ship? It must me staggering.
No idea; but, I'm sure it could be derived from the FJ plans. I'd be curious as to the displacement volume; but, not sufficiently driven at the moment to find out lol.

And here's the latest update:
Here are shots of the completed work on deck 5. Lots of complicated geometry. It's been simplified now. Still a little work to do in seaming up the ceiling for deck 6 as part of it had to be cut from the deck 5 floor and from the outer hull ring; but, minor stuff at this point by comparison.

..wireframe

..30 percent transparency render.
Deck 4 work has already begun.