Actually creating a ship map is not TOO hard. Yet I decided for some stupid reason I wanted the ship to be on its side!

The PCs are to descend to the recently sunk ship and salvage some chests.

I decided, because I am stupid sometimes, it would be more interesting if the ship had landed on its side, starboard side up, where the bow's hole that sunk it is very obvious.

So, just how would one go about mapping a ship on its side?

Would you present it as normal looking flat upon the decks?

Would you map it from its side and show the decks as "walls" and the side as the "floor"?

Or would you do something entirely different?

Please, help me Obi Wan Cartographers, you're my only hope!