If it was me. I would ride very slowly, so when it breaks and jams in the spokes I would minimize the chances of killing myself.

It's a neat idea. But I think you need to spend more time on design and think it through. Fiber and resin is something used quite often in this sort of function. I would research that. It's going to be a hassle if you want to do this right. If not, there's usually one on sale at nashbar.