If this was happening anywhere near me, I would be all over it. I am in the complementary situation; I have a ton of ideas about how I want to build up an experimental farm/nursery/farm-tech incubator, but inadequate space and funding. Hope we see your work here in the future.
On a side note, I feel your pain, my wife grew up in a farming community (kids were late to school because the cows got out) and there is food rotting in the fields because the migrant workers haven't been there en mass the last couple of years. With the INS crackdowns, it's only gotten worse. We love farm stands and join CSA's when we can find them, you guys are great. Keep fighting the good fight!
You'd be astonished at how quickly and accurately a large air compressor with a small amount of water added to the flow can dig a shallow trench or small hole.
I discovered it when I accidebtly blew a hole in an asphalt parking lot trying to use the compressor to clear sand.
Compressor was a little 50hp Rand diesel tow behind. 120psi 180cfm. In soft soil no water is even needed. A little water (like 2-5 gpm makes everything nicer). I started by making a little brass siphon fitting and then upped it to a garden hose fitting by the end.
Layed miles of sprinkler pipes with it. Always figured it would make a fantastic automatic digger for something or other.
It looked like a tiny little trailer that you pulled behind a jeep or something. It ran all day on a few gallons of diesel.
How is that possible? What part of the country are you in?
Is it that everyone willing to do the work lacks the necessary skills? Or just that no one is willing?
You can probably go to your local FedEx hub and find a bunch of guys who load trucks for less than $15/hr.