I was surprised at how little land this analysis says you need for a family of four. It seems they did not mean to grow the feed for the animals on their own land, indicated by the very small area allotted for the animals. In my opinion, living off the land means producing most of the feed for any animals on the land as well.
It is worth thinking about our true carbon food-print. The site is a resource for solar energy options. It’s worth checking out.
Home Solar Power Discounts – One Block Off the Grid
How big a yard do you need to live off the fat of the land?.