Barry, in your neighborhood, how large a spread does it take to make a decent living?
It varies widely here.
3-400 acres seem to support a family if in the right spot with the right water and other improvements.
But, like I said, it is a wide range.
I know one guy that runs 50-70 cows on 100 ac, and cuts hay off the place.
Other places here 10 cows on a 100 ac is over grazed.
When ranching out in W. Texas S. NM, we used to joke it took a section to run a cow...
Sad part is, that it wasn't much of an exaggeration for that country.