"If you doing food plots with equipment trucks trailers for transport etc. involved I am confident you are spending 500 to 600 per acre to install if you add everything involved into cost. And that is with no labor cost involved."
I bet I spend a grand an acre, maybe two, by the time I drive back and forth plus owning a second set of equipment! But I do it for the love of doing it, not saving money.
Post where you do your work, some guys may be interested in hiring you! Good Luck!