Ya know, that's a good question. I've never looked for such a thing but my first thought, obviously, would be to google up some ships plans or what we call deck plans. My second thought is to use something like a cruise ship plan and just take out things that wouldn't be on a pirate ship. Many of these cruise places have a layout of their ship in a brochure so they probably have something online. So with that said, leave the bottom level for storage, next up would be crew and kitchen and mess hall, above that, uh I dunno, maybe officers quarters and gunnery.