Connor Krukowski stopped by to work most of the day last week to help clean and prep the system for testing. He helped sort of the voltage regulators, test the power supplies, label and organize the parts, etc.
Connor performed electrical tests. Since then I repeated his tests and compared the readings with the working 11/40 nearby.
There is a lot of work left. We have not tracked down all of the faults power or otherwise. I have returned all of the original cards to their original slots. I have not yet tested the front panel itself, nor the cpu or RAM. A bad CPU could cause a DC LO AC LO condition in addition to any issues with the power supply. Although I need at least one h745, I might be able to get away with only the one h744 by removing all but the CPU cards, for testing purposes at least.
Next: Find and test an h745 and one-three h744's.