When I boot V7 in SIMH (pdp11), I get a root shell and a root filesystem, but...  I see that /usr/bin is on root's default PATH, but I have no /usr/bin directory.  Is there some way I could get a /usr/bin with additional executables, to get the full flavor of V7?

By way of introduction, I first started with *ix on an AT&T 3Bmumble, and started really getting into it with SunOS 4.1.1.  I've recently become interested in trying a large number of different *ix's - I guess it was the ease with which VirtualBox allowed many of those, and then seeing Nordier's V7 port to x86 got me curious about trying some really old versions - he mentioned that there was a pdp11 emulator available...