Updated 9/04/2019:
I worked on the transformer cart over the last 2 days. First, came the design. This is a top view showing the cart's deck and then the cart.
Tonight I was able to knock out all the components except for the two PowerHouse 180's being delivered to me at York.
Here's a look at the bottom shelf of the cart. It holds all the DC power supplies - (left to right) 3VDC, 5VDC, 12VDC. There's plenty of room for additional ones if required. Yes, that's a book end at the right. I keep the Panhandle reference manual down there.
Might be time to move on to the scenery surrounding the Ohio River!
More when I know it.
George