It took a while, but I finally got through all my final prints this week....
Here is the figure project in the middle of the printing process. You can clearly see the "honeycomb" structure that forms the interior (as well as the filaments running through where there are apparently imperfections in the model... oh well!).
This photo shows the figure as it came off the 3D printer, including the printing raft and scaffolding. (This also shows the smaller version I printed initially. The black pieces are the solar barge prior to assembly.)
...And the two images below are of the model in its completed state.