I have zero legal advice to offer, but I reckon the overall idea would be very well recieved by teachers. As you say, the resources are very good. I think you know the main hurdles (I.e., the reputation etc), but I think handled delicately, you could make it work.
We blocked it (along with almost everyone else) and it went down like a ton of lead ballons.
EDITED: 24 Jan 2010 12:35 by HERMAND