Updated 7/18/2019:
Yesterday I acquired the 12 gauge stranded wire (500' spools) of Red and Black for the track power buses. I also picked up 300 Scotchlok IDC 567 connectors (AKA suitcase connectors). They will be used to splice the GarGraves pigtails (16 gauge) to the 12 gauge bus. Here's a test crimp.
I installed two more vertical supports and the cross-arms to hold the foam scenery. The cross-arms are positioned so that the fascia can be screwed to them when the time comes to install it.
More when I know it.
George