@stephenw10
Good news. I was able to format the USB drive as UFS, reinstalled, and everything is up and running on my (now) backup 1100.
Interestingly, on this one it configured the /VAR disk for 120MB as I had set in the configuration, rather than limiting it to 60MB as the other device did. I am guessing that the Restore process just sets it to whatever the configuration is and it doesn't have the UI glitch holding it at 60MB.
Thanks so much for your assistance (again), Stephen. Very much appreciated.