That's quite a piece of work. I'm glad you were able to figure this out, and I hope the Views don't give you much headache. They should be at least as simple as anything you posted above, likely easier.

If you don't mind, would you be able to add the contents of your above post along w/ how the Views turn out as a tutorial in our User's Guide? You just have to go here and click on Add child page. That would rock.