RE: building rc plane.
If you are new to the hobby, well, there are alternatives that have more control than a rudder on-off switch, and that don't cost $160.00. Read some of the electric threads and see what is around. Ask questions if you see something that you like.
If you find a model you are not sure of, google it and see what pop up about it. There is lots of information around on just about anything you can imagine in RC Aircraft. It just takes a bit of research. And, as I said, just find what you think would work, or that you like, and ask right here in the Beginners Forum. I can pretty much guarantee you that someone out there knows something about it.
The key here is not to give up. If you really want to fly RC, there is lots of help available here.
CGr.