Finished the floorboards Pictures below.
It really was pretty easy. It was just a small cap over the hex key on the right peg, came out easy. Took about 5-8 minutes to ream out the holes in the new mounts with the Dremmel tool. Only two positions for floor angle. The angle flat worked OK. It probably would have been better for the angle without the forward controls, it makes the ankle angle a little odd.
After install, which took about 45 minutes beginning to end, I took them for a ride. I end up letting my heels hang off the back, and using the rest for the front of my foot. There was a little more vibration in my foot at 55 MPH or over. I came home and cut a piece out of an old inner tube, and slid it in between the two parts of the mount, and it seems to help.
I stopped by an O'Reily auto parts on the way home and picked up a Ford brake/clutch pedal pad for about $5, which fits over the Savage brake pedal so it sort of matches the floorboard.
I may try a different set later, one with more adjustment for angle.