A possibility...

Tad Roberts designs some nice small displacement boats. Please look at his site to see his designs. I've started sketching out some vague ideas of cabins, and I'm not entirely sold on any one of them. This is an amalgam of a couple of them, inspired by Tad's designs and the White Star's hull shape.

The boat shed is progressing nicely, but I pulled my usual trick of mis-estimating my skills, energy level, and weather. 300 square feet framed in 2 days? No problem. Thank goodness for tarps.