The pigs we raise are pastured like beef, and we give them corn twice a day. We get between 250-400 dollars per pig depending on how big they are. We trade a 300 dollar pig to an Amish guy up the road for a quarter beef (250 pounds after processing) that is raised the same as our pigs. Bartering...
The Amish folks in our neck of the woods quoted me a 30x40 metal pole barn with a 16 foot interior height erected for 7200 bucks. That includes windows, two roll up doors and two regular doors. Dirt floor, but this might give you an idea of how much you could build it for yourself.
30 x 40...