I think the most detailed part is the economic part, but to be fair we need it the most for the RP to work. It's the only constant and everything else throughout the Roleplay can/ will be changed. That's why I think it's mandatory to lay it down thoroughly. It's pretty much the foundation of everything else. 

Don't worry though, it's not as complicated as I made it sound here in the comments. I will take more time to explain it better when I start the RP. All information will be available and easily understandable once the official RP thread is opened sometime next week.