Let me double-check that I put the keyboard firmware up. I dumped it when I was working on fixing Keytronic keyboards last year. It's one of the 8035 style like the Lisa.
I could write a book about the Concept, and it's failure in the marketplace. They almost had it right, except they totally blew it on the software side, ignoring windows and mice (they thought HP-style softkeys along the bottom were the future).
From memory, later boot proms could boot from 8"SD, 5"DD or flat cable disks, or from the Omninet to something like an Omnidrive.
The 8" controller is just a 1771 with no buffering, there is a 2K SRAM on the 5" drive controller. I think the rom listing manual is for an early version. I'm pretty sure there is the source for the later versions in the pile of 8" and 5" disk images. The disks are UCSD Pascal format. There were two memory configs, the first was 128K then they went to 512K.
Later, they hacked in an SRAM MMU and ran Unisoft unix on it, but lost the bitmapped display.
There was a later machine that added the display back in and integrated a ST506 disk controller into the box. That design was sold as the Valid Logic Scaldstation and (mumble) by Honeywell.
