After a lot of debate, I decided to go ahead and make Gun Ports as the ship had in the 18th Century.

So, I found that I can take a Razor and cut the shape out. I go down a couple layers. Then I thin out the Gun Port Doors by using some Alien Tape and putting the Door on the end of a Dowel to thin it down on my Sander.

After that, I glue in the Hinges after hooking them into the top of the Gun Port Door.