Interesting idea and I think it would work for a place like Marne, Iowa. I think it's also equally viable for like-minded permies to reach out to the others in their existing communities and work together to bring more awareness to the wonderful ways of food sovereignty and resilience. It happened in Willits CA before a large influx of people. The momentum generated attracted more permies.
I think it's more worthwhile to make changes in communities all over the country that to try to isolate and insulate in a remote corner of land. That is what groundswell is all about. When enough people all over the country become aware of and connected to each other, we will have lots of power. This starts by making connections and reaching OUT to transform neighbors and make small lasting changes in the community where you are. There are plenty of folks on this forum that are too isolationist. What's the result of that? You will be isolated from bad AND from good.