Update for Nov 23
I bought a multi-turn pot for accurate throttle on the AC controller - so the throttle should work for the next test - likely Wednesday or Friday - just a small bit of soldering required.
Lighting for the meters: they are hard to read. Some lighting is required, and I'm going to try moving them to where they don't vibrate (not on the motor base).
A quick test with a couple of LED flashlights seemed to work OK. The angle is important so the camera can read the numbers. Maybe a cardboard stand to hold things in place so the phone and lighting stay where they need to be?
There WILL BE DUCT TAPE!