I cut the template from construction paper, went to the scrap yard and found some 10 gauge. Plasma cut the piece a little big, tacked, clamped, and bent. Hit it with the trusty 4 1/2 inch grinder, then filed flat. Mocked the bushings, figured out the grease zerk location then welded them in. You could make them lighter by cutting holes, but I'm trying to achieve a period correct look. The uppers are getting a strap on the underside. All this and the iron headed crossram weighs a mint, so I'm hoping to save weight with aluminum brake caliper and hats.
The upper mount is technically a G mod and moved back 3/4 inch more. I built a template to hold the points after cutting everything free. I took alot of measurements before execution.