Re: Nothing new.
Last time I checked (10 years ago (ish)), SAIL's original DECtape "Permanent Files" from 1966 to 1972 and then the 7-bit DART tape archives (Dump And Restore Technique ... essentially full system backups of the SAIL PDP-10), from 1972 to 1990, were available to researchers at Stanford's Green Library (in "The Digital Collection"). Access is (was? see below) restricted to people who have permission from the original authors.
I know there was some effort to put all that into a more modern archive format, and then put the results online, right around the turn of the century. I do not know how far the effort managed to get.
Note that the interaction between SAIL and SLAC (and The Big Dish folks) mostly wasn't official, but tapes between the three were exchanged fairly regularly. SAIL mostly helped with knotty algorithm wrestling on large (for the time!) data sets, robotics, and imaging..
The following map shows how close these three campuses are to each other, with the main Stanford Campus upper right. The now sadly demolished D.C. Power[0] building, where SAIL was located, is currently home to Portola Pastures, a horse establishment (bottom center).
https://www.google.com/maps/@37.4071914,-122.1815786,4723m/data=!3m1!1e3
[0] Nothing to do with Electricity ... it was named after Donald C. Power, a corporate director of GT&E, who had built the building as a research lab, and then gifted it to Stanford. Lore has it that SAIL (originally SAIP, "Project") got the last part of it's name from the building ...