Jeff....
My ideal resolution of such a situation would be to select a proper delivery system and components, present the plan to the school and have them sell or return the inappropriate stuff they purchased. In other words, back to square one. If they are not willing to bite the bullet and do it right, I'd respectfully decline. You're going to be stuck with "why it doesn't work" forever after.......
DR
+1 ... also...
Never take on an install contracting job that leaves you with so many questions. If you have to ask help for the basic solutions, maybe you'd be best passing on the whole job.
and... Do you know, or, are you certain of your potential rigging points? What are the point's materials? Are you certain that you know the correct rigging hardware to be used?
Do you have insurance to cover liability?
If you're not certain of the exact answers, then, you're probably not qualified.
It's nice to want to help, but, whom are you really helping if the system doesn't provide significant benefits, and the gear is not completely documented and safely installed, over what they have now?
Good Luck, and do the right thing.
Hammer