Linux from scratch has a runit-for-lfs project here: https://code.google.com/p/runit-for-lfs/

github mirror: https://github.com/inthecloud247/runit-for-lfs

I've also been keeping an eye on voidlinux: http://www.voidlinux.eu

But consider FreeBSD, it may seem extreme, but if you're willing to make that move then their philosophy may be more in line with yours anyways. Their rc system is great and includes vastly simplified scripts using rc.subr, while still keeping everything as shell scripts. No bloated dbus or similar nonsense required.