That........ was a faster response than I expected. Thanks.
Now, I'll use your examples against you. The 2001 ship, from what I saw, had less than half -- maybe a third -- of its space taken up by what an EV scenario would consider "outfits." Even though it was a habitation ship with no instant-travel hyperdrive, the engines and the power source murdered its available space. I expect the same of Borg ships........ and I won't bother with the solar sails. Argh.
By the way, when I mentioned using the length to make mass calculations, I was referring to its use as a modifier of the "additional mass" percentage, not a direct factor in the total.
( MS-06F Zaku II: "Do these vernier engines make me look fat?" )