The One-Room Schoolhouse
First, have you read my post, You Want to Homeschool But You Can't—Try This! If not, you may want to start there to learn about the schoolhouse model.
If you have, then you know how much I favor the one-room schoolhouse as an alternative to public school. Truthfully, if I could do it all over again, I would have established a schoolhouse over homeschooling. There are so many perks to the one-room which you can read about in my post.
I have had some experience teaching a couple of families at once, and any homeschooler with a 5+ family will vouch for this—it is very doable.
I've also read extensively about how they used to operate, and I recently had the pleasure of speaking with a delightful gentleman, Mr. Hokom, whose mother taught in a Midwestern schoolhouse back in the 1940s. Mr. Hokom spent his elementary years learning in a one-room too.
We had a great conversation, and he affirmed everything I had read and my own experience teaching in my mini-schoolhouse.
If get the idea of the schoolhouse model and you'd like to introduce it to friends or have me speak to a group about it, you're welcome to submit a request.
With her extensive knowledge about the one-room schoolhouse, Elizabeth can guide you through the process and help you build the school of your dreams.