Well I have tried everything within my skill and budget, but I cannot get Debian running reliably on my PM9600/200MP. I am still getting hard crashes during dbootstrap's bad block check of the hard drives, or (if I skip that during instalation) during apt's configuration of newly installed pacages.
Everything I have read here and elsewhere leads me to believe that I have a hardware problem, but it is one which the MacOS is highly tolerant of, as I can run without errors in MacOS. I have tried different hard drives, different SCSI cables, swapping the SCSI busses, stripping the SCSI chain of everything but one HDD. I pulled out all of the DIMMs and tried them each, one at a time, but nothing seems to help. I have no more time or money to spend on this effort, so its over.