UPDATE: I got all the parts that I need so far, a big thanks to Harry Henning again for the elusive brush caps. So, after a couple of hours soldering wires and doing some more cleaning of the drivers/rollers, I was able to get the e-unit to get moving and heard some humming. Unfortunately, I never got the motor to actually budge. I will try again over the weekend.
Any suggestions? Keep in mind that this was pretty filthy and who knows when it last ran. Reminds me of the 1990's when I used to go to a train store in Tuckahoe (and later Scarsdale), NY, Trent's Trains, and the owner used to liberally spray WD-40 on any motor which wouldn't run and usually had good results. Would that help at all?
Tom