I live on 3 acres unfenced and have been looking into fencing ideas for Jackson.
I've found a few 'deer fencing' type things that will probably work. I have yet to do it. But was going to make a big rectangular area for him to run in supervised. You can get metal posts, or wood, and use twisty-ties to attach them to the fencing.
Similar to this type of stuff:
Tenax 3 ft. x 15 ft. Black Hardware Net - 751397 at The Home Depot http://www.acehardware.com/product/i...602631.1260448