Inspired by Tabletop and Overlord to finally get this project underway. I realized also that my ship design is very similar to Tabletop's :-o
I have pretty much finished the main hull construction. I have done the solid foam core more than a few times in the past to build the hull, but this time I wanted to actually detail the below deck of the ship. Here is the ship so far with the top deck in place:

Using some pink 1.5cm insulation foam for the base I used some sturdy card for the gunwales (what is the modern term for gunwales anyway? ). I wrapped it around the pink foam and pinned it in place. Then, I used some balsa beams to help hold the gunwales in place and also act as a platform to rest the top deck on. Here is a picture of the lower deck of the ship with the top deck removed:

This ship is pretty wide: 16cm (6.24") and 52.5cm (21") long. I figured this is really as small as I could make it and still have it be playable. I want figs to fit pretty much everywhere.
So far I am pretty happy with it for 1.5 hours work =D Looking forward to seeing this one unfold.
n.