One of the members needs to make a jig to bend brass wires and make about 100 sets for the 3300 ( or 3322) locos and sell them as kits. The angle brackets are just little pieces of sheet metal bent on a brake. Those could be sheared up in bulk, stacked flat 10 high and holes drilled before to the 90 degree bend.
I knew I was going to miss all my machine shop stuff, and I sold it for cheap too. And used to have a friend that would have loved to have made these and would have sold them for very little. He just loved doing machine work for trains, mainly the outdoor 7.5" gauge.
Someone close to Harry Henning should ask him who does the bending for his handrails, and maybe something could happen. I used to know train guys in the outdoor railroading hobby that could take a straight piece of round stock and bend into art if they needed to. This would be a "cupcake" for those old-timers!