After much head scratching I think I came up with the most simple, lightweight, and straightforward way to mount this thing. I made the bracket out of light guage square tubing. Grade 8 nuts, bolts, and washers were used. The washers extend to the edge of the square tubing to resist it being squashed. I'll have to weld in crush tubes if I have any trouble.
There are 3 sets of holes so the pedal assembly can be adjust 2 inches forward or back. Note how offset the passenger side mounting bolt hole is at the end. It's over and forward that far because if it were centered the bolt would be going through a stiffening pleat in the body instead of the flat section.
I had to step the front down a bit to clear the base.
The front will have some sort of support to close the ends of the square tubing and attach the front of the support bracket to the area under the dash, but I'll wait till the MCs come and are installed.
