Caporegime
Use the cardboard box delivery method to save yourself some time. It wasn't very well advertised in game but if you take the documentation from the signposts next to the orange platforms which are at all major settlements then you can quite easily move from one place to another in seconds. You just have to stay stationary on a delivery platform while inside a cardboard box.
I did see that but it said you need the right manifest for your destination which I assumed was going to be a complete ballache.