I recorded this video a few years ago demonstrating how to build a kit in Modo. It goes through the basics of normal kit setup and by the end of it, you make a kit that gives you a scripting layout to work in. The Scripting layout isn't really useful anymore since 901 introduced a scripting layout of it's own - but I made the kit well before that was made because I needed it. You can still pull the information out of it for how to build a kit of your own.
I also have a plugin on Package Control for Sublime that automatically sets up the default stuff for you.
You can also find the source code in the Github repo.