With the kitchen installed, and now preparing for our vacation, I cleaned the basement for the first time since abandoning the camp kitchen I had in the basement for two years.
So for the first time, I can really see how the layout expansion will work.

This will be the west end, housing an engine terminal and a small yard. The east end will be the existing HCD, somewhat modified to form the other end of the racetrack.
I think the kids are going to like the new place...
This fall should start getting really interesting.
Lee
