Very nice write up and pics!!!
The only things different for me was I was able to change both front pads with only taking out the T-40 holding bolts on one side of the front caliper and that gave enough room to angel and slide in the pad for the side with the bolts still on, then insert the other pad, hold in place, and reinstall the T-40s. And actually I was able to use the original backing plates on the front and one of the two on the back without issue. I did not experience or hear the pads shifting during bedding. I will look and see if they are up against the pins and report back.