It was nice to get some woodworking started. Today was all about the side walls for the sleeping area. I'm using 1/2" marine ply for the outer skin and 3/4" marine ply for the skeletonized middle section (for the insulation). The roof will end up being double 5mm ply over 2" X 2" spars (insulated, of course!).
The side exterior for the driver's side with the door and utility hatch (water supply, electrical supply, battery meter, etc.) test fit.
The design drawing for the skeletonized middle wall...
... And the cut section in wood.