::Print base down with support::
My Mother loves this Australian TV show called Sea Patrol, it's not on anymore but she must watch it everyday. Anyway, here's a rough version of the Hammersley, the ship from the show. It's an Armidale class which the Australian navy use.
By no means a scale model, all done by eye in an hour or so, but the shapes are near enough.
Designed to need minimal support above deck, just watch the little antenna on the wheel house, I snapped mine off because I was rushing.
If you want you can do what I did and use some old support material and a bit of glue and add some little pieces for interest, just get your flush cutters and some tweezers and greebly away.
If possible in your slicer, turn off uniform scaling and maybe increase the width by 10% of so, it's a tad thin. It might float right way up that way too if you wanted it in your bath :D