Communal Living

I've been researching the idea of disability communes, aka intentional communities, since a couple of posts ago. I sort of like the idea at noahsarkflorida.org (links aren't working right now, sorry), but it's designed for families whose kids have mild to moderate developmental disabilities. I would love to see something for those of us whose kids are in the severe range.

I'm wondering who else out there would be interested in a living arrangement that includes entire families who have a severely disabled minor or adult child. I'm envisioning something like a large area of land, maybe several acres, with separate cottages and possibly a common area for meals.

Does this ring anyone's bell, or do I need to get my head outa the clouds?