What will it take for people to finally manage a country by themselves? It's it even possible?
For coin, you start with Estonia's electronic signature infrastructure. You have the government work to maintain the sanctity of signature chains, the flow of money, and the visibility of the flow of money, see https://en.wikipedia.org/wiki/Digital_signature_in_Estonia or the use of RSS feeds in the TARP-2 bailout fund.
For court, you want to have speedy trials, heavy on the jury. I mean trials like the 1920s where people sue each other over almost everything and most trials are concluded the day after they are filed. You should probably consider mandatory jury duty (or significant fines) streamed to cell phones. Let locals shape and enforce the law.
The goal of coin laws is to create a single system. The goal of jury trials is to have everyone buy into the system. I did not put justice as a goal.