Scored a R-8 Halloween (the one with no label just a piece of tape for the title) with the manual @ the retro show. Also got some r-9s and some r-7s that I already had. Paid over $500, but worth it to me.
I finally got to see a real version in person the other day. It was the labeled variety though. The hand-written label would be one fun collector's piece to have.