Free: Contests & Raffles.
My suggestion: go take a walk, drive or hike through the unit and buy some good maps. You will be fine. I have very limited time myself but if I was drawn for an unit I have never been in then I would be making scouting a priority.
Never mind these jerks, everybody is jealous they don't have a tag. And anybody that asks for help, without very much introduction.... gets the cold shoulder. You should start with a map, and the weyerhauser st. helens tree farm map is a good start. Much of the land is behind gate during the early season, but there is some state land to be had. You can get a start from Toutle of Hwy 504, and some southern access from the woodland side. Good luck, I had the tag twice. We had a blast!