I got a beer says that is nowhere near the last item you will purchase before you are thru. I just think it is very cool you are doing it. That is a lot of time and frustration commitment for sure. While it will be terribly frustrating at times rest assured you are creating a life long memory for the students. And who knows you may light a passion In one of them to pursue a career using their hands. My biggest fear would be trying to keep them all safe, you are herding cats with sharp tools and elevation, what could possibly go wrong?