I printed the new design out on multi-sheets and taped them together to do a trial fit. It will work. I also scaled a picture of a electrical worker to give an idea of scale.
I also attempted to make an insulator using sequins and some 6/10 beads. The experiment was a failure in my estimation. The beads are made in China and varied greatly in size, shape and were irregular. I also bought some 11/10 beads, but they're very small and would be better for HO. I'm wondering if there's some sizes in between these two that could be better.
Meanwhile the plastic push connectors will make good insulators. More about them later.