We found a school very much like what Polly describes. When visiting the classrooms we encountered a full size authentic teepee - the kids had completed this project when they studied Native Americans. A cage filled with adult chickens - raised from eggs hatched in the classroom. The K/1st classrooms had a lego area, the 2/3 classroom had comfy sofas with kids all curled up reading books for pleasure. No homework before 4th grade and even then no one was allowed to spend more than 30 minutes on it. "If you can't complete it in 30 minutes it means you need some more help with the concepts. Bring it back in and we'll go over it together." The teachers altered each year's lessons according to interests of the kids in the class.
DD was accepted and we were getting ready to write our tuition check the day we found out about all the 2E issues. I still get a pang in my heart every time I see a car with a bumper sticker from this school. I also wonder pretty often if they would have been able to accommodate DD if we had enrolled her there from K. Our school district insisted she had to be enrolled in public school in order to get all the services she would need for her LD issues. We would have had to pay extra for Orton-Gillingham tutoring but I do wonder if the individualized approach could have worked.
So yes, it is out there. You just have to be lucky enough to live nearby and be able to afford it. Admission is pretty selective. They want the right kid and parents who are supportive rather than competitive. I can spot a family from this school a mile away. Yeah, pangs in my heart...