Intentional Communes come in all sizes and flavors.
What you are describing is along the lines on Vilage Homes
A nice video about it https://www.youtube.com/watch?v=QmFVxPjG2JI
While it is an amazing achievement, it's not a place I would like to live.
It's also not what comes to mind when I think of intentional community.
This what I think of when it comes to IC's
(watch the video at the bottom)
It seems to me that your group lacks a clear picture of what it wants.
Take a min and read this posting
These are our lessons learned about establishing a multi-family retreat.
Just my thoughts.