The hardware store, OBI, by my house has the metal plates and wood I will need.

The blade/tang of the regulator is exactly 8mm. The M7 tang is supposed to be 4mm. We'll see when it gets here. They sell 2mm plates that are 20mm wide, approximately the same width as the M7 tang, just a tad wider. A little dremel action will fix that. I will have to cut to shape and lay a 2mm plate on either side of the M7 tang to make it the same size as the Reg tang. Then I can put the solid plate on top and bottom.

I think I have come up with a pretty simple plan, and it doesn't require me altering the actual steel I got from the Scrap Yard. Plus, the Res C came off and is completely undamaged. So, if this idea fails, I can just put it back on.