I'm not sure if i'm misunderstanding your question, but builds on archive.michigan-terminal-system.org go up to D6.0A, dated 18 January 2012, including Hercules configuration.? D6.0A is a patched version (mostly for Hercules compatibility) of D6.0 from 1988.
Also a good starting point seems to be?
I just happened to be googling this all up as I was thinking about setting up an MTS or MUSIC/SP VM.? Too bad that? MUSIC/SP doesn't have TCP/IP under Hercules, as far as I can tell.
Apologies if I'm just repeating what you already know.
Scott
