Comment by snowmobile

Actually, the linked university page [1] does claim that the "cash rent equivalent" is $274 per acre. Surprising, but I suppose farmland isn't that expensive. But unfortunately their total budget per acre is $960, 90% higher than in the AI's "budget". Assuming that it can do everything as efficiently and cheaply as an experienced human farmer, such as harvesting all 5 acres in 14 hours of labor.

[1] https://www.extension.iastate.edu/agdm/crops/html/a1-20.html