Hi HH,
I just joined this forum and found your thread when searching for posts on ecovillages.
We have a home for sale right now in a lovely ecovillage in Iowa. It might not be exactly what you are looking for based on a couple of your comments, but here's some info if interested:
https://permies.com/t/262571/Ecovillage-home-sale-Fairfield-Iowa#2580250
Also, we are selling to move closer to family in southern Arizona (rural land outside of Tucson). There are 5 other 10 acre plots for sale surrounding us. It's all owned by a local resident of the area who has decided to just start selling things off as he is getting older. There were 2 plots around us that have been sold and purchased by people interested in self-sufficiency and sustainability. It would be great to have more like-minded people around us.
Your vision and goals definitely resonate. I would love to create an intentional neighborhood where we're headed in Arizona. I understand the desert isn't for everyone.. but I'd be happy to share more information about the area if you have any interest.
Either way, hope you find exactly what you're looking for
Blessings,
Angela