This summer me and some friends all made courses at our houses, all of them pretty nice. We thought it might be a good idea to start building custom courses for people next summer. there are plenty of rich yuppies in our town that would be willing to shell out 2-400 dollars for a good course.
My question is-has anyone ever done this before, and how good would i have to make a course for someone to pay me?

i would obviously use as little expensive wood as possible, too keep costs down. I would probably be making almost all woodsball type courses, as i live in a wooded area.
any hints/suggestions would be appreiciated
thx in advance-
frothy