In trying to figure out the layout of the 3D area in today's comic(eta: 8 hours, blegh), I've created the width of the inside area of the Ballyhoo. There's an additional 5 meters of outside space on each side(life boats 'n fresh air), but this is the inside space I have to work with, at least for the width(length of inside is 6x this, plus the pointy ends of the ship). The theater and dance club are both this entire width. I'm still not sure of the layout of the stores.
VERY coincidentally, the rentable areas of Furnation(Second Life) are ALSO 28 meters wide, which opens some interesting possibilities.

...someone keeps yelling "HUGGIES!" or maybe "HUGGBEES!" in Second Life, where I'm designing this stuff.