Hi there!
Recently got a subj system in partially working condition (PSU was messed up so I converted a small ATX one to power up the sysetm).
But the real pain in my ass is missed FDD/HDD drive cage. It's a poprietary type one (who'd doubt?) with an edge interposer PCB that splits SCSI/floppy signalling/power from a single connector on the mainboard and delivers them to a corresponding drives mounted.
Does anyone know where to source a such board (with a such PCB) to complete the precious EISA system?

example pic fom the NET: