Something like this is what we need:
http://www.ncs.gr/openacs/
That and the idea of the FreeBSD someone is already doing. That's it! Just make it run, go have a coffe and come back to enjoy OpenACS! That's what I'm talking about.
I don't think adding more documentation to the current one would help. It will just rearange the set of instructions in a different way... and please, correct me if that is not your vision.