It's not all that difficult, the process is the same for all stringed instruments. The first nut I ever cut was for a bass I made 8 years ago. The one single thing that helped the most was correct gauge files for the strings I planned on using.
Check out this
tutorial, its for guitar but it is the same process. A feeler gauge is handy for getting the action at the nut correct. There are plenty of resources on line, check it out, this was just the first one I came across.
Mike in Homestead