VME532, GNX Unix and want for a Maxtor XT-4175E

I need to find a working Maxtor XT-4175E disk drive. I've had the wonderful fortune to have picked up a Heurikon VME532 (NS32532 based) development system. This is probably the fastest single-processor 32532 system produced (Encore MultiMax was of course faster, with more processors). The bonus is that this system is running GNX 3.1 with the National Semiconductor cc compiler, along with a bunch of other development tools (and source code for odd ns32k bits). Unfortunately, I don't have the distribution media, so a disk crash would be fatal, wiping out an almost unique machine. GNX is running on a Maxtor XT-4175E 175MB ESDI drive, and if I could find another one, I should be able to 'dd' a bootable backup. Does anyone on the list have one of these drives that they'd be willing to part with, or knows where I can buy one, in order for me to have a working backup of this system? P.S. - Of course, if someone has GNX distribution media, I'd love to hear P.P.S. - If anyone has any Heurikon VME532 bits, or GNX knowledge, I'd love to hear from you as well. P.P.P.S. - How long has it been since I ran a Unix (a 32-bit Unix, no less) that could fit, with development system, et. al., on a 175MB drive with room to spare (113MB used). Ken Seefried, CISSP