That's one of those ideas where you think - Wow, that makes so much sense - lot's of people should be doing it! And then you look around and no one does. We've been trying to get a mobile slaughterhouse going in Central FL on for years ...
There are a few, but more often it is the farmer's coop that is centrally located and material is hauled to them. That is done because the machines are too big or needed specific power.
But in the OLD days all farmers did that--threshing machines, corn shellers, etc.
The big stumbling block these days is the department_of_sad.gov The regulations are written around infrastructure.
"You must be the change you want to see in the world." "First they ignore you, then they laugh at you, then they fight you, then you win." --Mahatma Gandhi
"Preach the Gospel always, and if necessary, use words." --Francis of Assisi.
"Family farms work when the whole family works the farm." -- Adam Klaus