RE: Ready to run in engine...........
I would tend to agree that you should wait until you have help, but Clay's procedure is good if you follow it very carefully.
The one thing I would stress, and Clay mentioned it several times, is that you keep pulling your plane forward against its restraint. As you try to start the engine, you tend to push the plane backwards. If it is not tight against it's restraint, it will jump forward when it starts up.
You just really want to make sure that nothing is near the prop, especially your body parts, but also TX, cables, clothes, etc... Give the prop plenty of room.
But, really, it's best to wait until your instructor gets back or you have some help. You can break in your engine and fly it the same day.
Good luck