trying to resurrect a DG Nova 3

Hi CC folks: Been trying for several years now to find the vital parts I need to get a Nova 3/12 from my old Univ. up & running. What I do have now is the chassis with PS, front panel, CPU and FPU boards, some of the documentation, and, hopefully pending, a disc drive (not sure if it has controller). Most of all, of course, we badly need Mag or MOS memory, plus I/O boards/peripherals. Have posted on "vintage computers" several times and also contacted a DG specialist but so far no success with parts. ANY help in getting this thing going before, at pushing 70, I get too old to ever see it run even a simple routine or ancient game, (or care !) would be very deeply appreciated!! Please eMail: firesweep "at" verizon "dot" net if you can help or have leads! regards, Roger A. in NY