mmafan,
You seem fairly well read so perhaps you’ve seen these before, but in his AnCap course, Dr. Murphy provided various readings, some of which have covered historical instances in which anarchy has happened and has worked out fairly well.
The Not So Wild West
http://mises.org/journals/jls/3_1/3_1_2.pdf
Private Law in Iceland
http://www.daviddfriedman.com/Academic/Iceland/Iceland.html
Anarchy in the Aachen
http://mises.org/daily/6145/Anarchy-in-the-Aachen
