But you would never be able to keep one together - there will always be a black market of some sort. Things have a value because people want them.
Yes, but they would have to change meat for ammunition and eggs for beer etc.
Then the best hunters end up forming the new elite - not a good thing.
The ones who survived it, perhaps. However getting an anarchical system that is stable is near impossible. Its far better to make a new society totally bent to favour ourselves.
I dont think there should be a system. People should live on their own as individuals or families. To construct a new society we'd have to get rid of or suppress the majority of NTs.
There is always going to be a system, there is nothing we can really do about it. Your only really going to bury the system under the table and we all know how well systems of unwritten rules work.
As for suppressing NT's, all we need is another religion or to subvert their existing social structures.