After much procrastinating, I'm currently installing the 2.1_fixed image. Behold, my stupidly convoluted install process:
-Download and extract the image on the A1.
-Samba the image to the 4000T.
dcp the image to a spare partition on the 3000's hard drive via Envoy
-Boot the Amix disks, installing from and to the same drive.
Bleh! What a mess! But it beats having to futz with external cartridge drives and mass quantities of SCSI cabling.
As for why I didn't send the image direct from the A1 to the 3000? The 3000 doesn't have Samba, the A1 doesn't have Envoy, and I've only got 2 network cables for 3 machines! :-)
Additional info will follow once the install is complete.