@Mytran - Hmm. Maybe you're thinking of the 1,164' (355m) TMP Enterprise that I was studying with the engineering/cargo bay? The 1,084' (330.4m) TOS Enterprise came about because the sidebays on the flight deck protruded out from the hull of the 947' ship.
It was just by chance that it ended up close to the 1,080' size others talk about because in LW I just use the mouse to scale a percentage and see how it fits and only afterwards do I do a measurement.
@Donny - Thanks! The lack of wall details helped out in this case