I hate to be a downer, but don't count on too much from the private schools. We moved from 1st grade in public to 3rd grade in a small private and things aren't much better. It's only been 6 weeks, so I haven't escalated things yet, but it's coming. I don't have any answers for you, sorry.
My DH is very hard to live with when he gets laid off (he's in construction so it has happened several times - twice after we'd just bought a new house!), so I understand about that.
I love your fantasy school! Can we come? If it is so obvious to all of us, why isn't it obvious to someone who could actually do it? I guess that's what Davidson is all about. Perhaps we need to get them to franchise. Or, mabye get Bill Gates to build and fund our fantasy school. I'm rambling, so I'll go to bed now. Hang in there!