@serapath re:ledgers that is actually a lot like what I was thinking with e-land... though, it's not so much about an ideal system, but rather about what I think might work in a given context. Though, after attending burningman I'd encourage members to form subgroups (theme camps) that did their own self governance, including coming up with their own rules if they liked. It's hard to get people to agree so if you design for needing less agreement, it'll be easier to find people who agree with you.
If it was at Bir Tawil it would be different again.