This is awesome. It’s like the sort of thing I would have wanted to do as a kid, except that I would have become frustrated and given up after one section. But this fan, one Robert J. Hall, saw it through to the end. There’s an article about him and a photo gallery of his project here.
Now, if only he could build a really good, life-size, moving #2 wide-receiver, we’d be all set this year. He could use “Mindstorms” to program in the routes to run. It’d be great.