Public domain Common Lisp for DECstations/DECsystems (RISC/Ultrix)?

[Michel Fingerhut]

Hello world,

I am looking for a public domain distribution of a Common Lisp that will
run under Ultrix (3.1 or later) on DECstations 3100 and/or DECsystems 58x0.

Replies by email (-> mf at ircam.ircam.fr) prefered, I'll summarize.

Thanks in advance,
Michael Fingerhut