Okay.
I've moved on to trying out the Ndure+Xboxhdm method.
I prepared a 2GB USB drive, formatted it, installed syslinux+grub4dos, and copied over the ndure installer folder.
I then used the NDTS to FTP my C & E drives to the USB stick, booted into the PC with the target HDD, ran the 'ls -l dev/disk/by-id' command to identify the target HDD (USB drive showed as primary master), started the 'xboxhd2' script, selected primary slave (identified earlier with the 'ls' given command), started the 'xboxhd' script in QEMU, selected the /dev/hda1 drive, confirmed at the 'eeprom.bin prompt, and confirmed at the copy 'C' files prompt.
After about 3 1/2 hours this PC is still running with no results yet. The CLI process manger 'top' shows qemu as taking up 90-99% of the CPU time, with about a 150MB of RAM in use.
How much longer should I wait before I accept it has hung/frozen?