Mr. Marbach,
I've got a few back issues of the RSTS professional in print at home, specifically the issue where I had a couple short articles published when I was just out of high school. This was the start of a long and productive career which included working for Plessey Peripheral Systems, Digital/Compaq/HP/HPE, and led me to my current job that I plan to retire with.
I also have uploaded all of the back issues I could find on the BitSavers website, and a couple of other sources. I have the following issues:
V2#3, V3#1 - V3#4, V4#1-V4#4, V5#1-V5#3
Please let me know if you get the rest scanned, or come across better copies of any of them, as I would love to have the full collection of RSTS (and VAX) professional magazines!
Glad to see you in this group! This appears to be the most active PDP-11 forum available today, and I would recommend it to anyone with or without a PiDP11/70.