Wooow, you are indeed the second known machine pictured in recent history. Sorry I did not see this post sooner.
Do me a big favor and scan that instruction manual. Likewise once the power supply is up I really want to know how your video card works. I've still been unable to get it to POST.
Please verify the condition of the tantalums on the ISA backplane. I had multiple blow up before it settled down and there were no shorted voltage rails. Also, PLEASE backup your hard drive. There are unobtanium drivers that should be present that relate to the EIDS laserdisc standard and the cards.