PROM and BIOS
sources exist; but is not published either.
Have to correct myself - the BIOS
sources are available at
http://www.cfbsoftware.com/sage/
That .zip file also seems to cotnain the ROM sources and soem other
interesting stuff, but I've not had a chance to read it fully yet.
I am in contact with Al to put the stuff it to bitsavers to become
available in a reliable location.
FWIW, I've downladed the sources .zip (but not the disk images, -- yet).
While I don't want ot have to send out multiple copies, if anything goes
wrong and all other copies vanish I would be happy to get it out to a few
people. It's better to have a copy that's hard to get to than to lose it
totally...
-tony