https://forum.freecapitalists.org/search/SearchResults.aspx?u=5172&o=DateDescending
those are two links you might find interesting, the first is a discussion on Friedmanite ancap and the second is the search results for David Friedman’s posts, as he appears roughly 12-72 hours after you utter his name on these forums, through the chicago school “multiplier effect” teleportation system based in chicago illinois.
he himself gave much better answers to your questions on this forums, but I think the main difference is that chicago school ecnonomists use cardinal utility.