Part of the setup would include an intensive livestock operation.
Pasture-raised poultry, pork, goats, sheep, cattle, alpacas, etc. in multiple paddocks, moved weekly. Trick is to allow enough down-time between animals that can potentially share parasites.
The rotation allows the different natural foods to recover (brush/ground-cover/roots), as well, eliminating feed costs. Additionally, selecting among the multi-purpose breeds, you get dual-purpose poultry (meat & eggs), mini-cattle (meat/milk/labor), alpaca (meat/fiber/predator protection/labor),…
So, what kind of labor can a small site use livestock for…?
Treadmill-type operations can operate any micro-h.p. application such as pumps, grinders, hoists, etc., plus cart-work, like carrying larger harvests from the garden to wherever it gets processed, etc. Heck, people are converting exercise treadmills to generate power for laptops and to charge cellphones. Backup generator to run L.E.D. lights when even the batteries have died?
Mainly, though, think of it as a cooperative food resource type project. In-season, Farm-fresh produce in exchange for fresh seafood, surpluses go to sales…