Oh, and Mister Mare, it does fall a lot, but it's only a small creek. I've seen many like it. At the steepest part it would probably be only 10 feet wide with steep sides.
As to the other questions, Don't worry about them. This time around, the contest isn't so much about dealing with the red-tape. Just get out there and draw some golf holes.
Oh, and to everyone. I'll be working on a tutorial tonight that is aimed at the folks not looking to use sketchup. I'll be demonstrating the use of Paint.Net. I think it will be the easiest way to route and design the course.