Check out "Setting Up a Research UNIX System" by Norman Wilson. troff
sources are in v10.
But that assumes you're being given a root image to copy
to the disk initially, no? We never made a general-purpose
distribution tape; we just made one-off snapshots when someone
wanted a copy of the system in the 10/e era.
Is there a binary root image in Warren's archive? I forget.
(where the weather feels like NJ these days, dammit)