Upper Left is the contactors. Blue box in front is the controller. The stove connector is for the external charger. In front of that is the panel so I can test or charge each of the 18 batteries in the pack. Several of the fuseholders for connections from this panel to the individual batteries are visible kind of hanging off the battery terminals. You can also see the end of the motor below the batteries.
The little box in the center of the firewall marked DATEL is a 12v to 12v dc/dc. The power supply for the Trimetric gage needs to have the same negative as the pack, but the pack negative can't be connected to the chassis. I tried using 16v from the 2 most negative batteries, but the tiny drain all the time made these two batteries more discharged than the rest. I wouldn't have guessed that 16 or 30 milliamps would matter. It did!
I haven't figured out how to format these posts, so the detail photos are in separate posts to follow or is that precede? Anyway, they end up down below. :-)