Hi Dosdude1,
Thanks for the response.
Maybe try using a different USB drive (or, better yet a second hard disk or partition) as the installer, and then see if you get any better results.
As I wrote earlier, 3 different USB sticks were tried - and actually I did also try using one of the internal SATA OCZ drives as the "USB Installer" and got the same results.
However - *some* progress has now been made
The latest attempt using a USB stick installer finished during the evening after around 12 hours - it was again at some sort of unrecoverable sleep/hibernation point, but when I power-cycled I was able to see a bootable 10.13.1 disk had been set up so I continued booting to the USB Installer, ran your patcher and that completed patching ok.
However, when I try to boot from this 10.13.1 disk it stops at "waiting for DSMOS" - I tried usual PRAM and SMC resets, SIP disable etc - no joy.
Interestingly, I also tried CCC cloning APFS and HFS+ 10.13.1 drives from my already upgraded MacPro 5.1 (Mid 2012) and tried to boot from these - these also both also stopped at "wait for DSMOS".
I understand DSMOS is "Don't Steal Mac OS" - some sort of authentication check introduced to prevent MacOS installation on non-Mac hardware. I know the Hackintosh community has a way around this using some sort of fake DSMOS responder but I don't understand how or why DSMOS would be an issue on a real Mac ?
I have since removed both the Sonnet Tempo USB3 card and the OWC Accellsior SSD PCI card - still no change. The GPU is a genuine Mac Edition from the Apple Store so this cannot be the issue (and in fact, I've used this on occasions to sort out upgrade boot loops on my MacPro 5.1 which normally has an nVidia Titan X so I know this is fine).
Not sure what else to try ? Quite perplexing given the success many others have had with their 3.1s...