Wolfgang Eichberger wrote: 
 hi glen, a little inventory:
# 11/23 BA23 Box S/N AG07072
  -in there is a H786 Rev.C PSU - after quick measurements it's clear that
this PSU needs some work
  -H9273 11/03L Rev.B Backplane is installed
  -Cardcage is not bent but needs some of this plastic-PCB-guides, many are
broken due to age.
  -Frontpanel is complete, nice signs of use
  -Distribution Panel is missing
 
Since you actually have a BA11-N, disregard the
suggestions about the BA23 slots.
Also, you will not have an RD5n distribution
panel.
Your backplane must already be 22 bit since
you have 3/4 MB of memory.
Jerome Fine