Ok so I'm trying to make a fort out of my run and coop. Run will have utility wire fence 6 feet up and chicken wire 4 feet up. Posts will be t-posts. Also adding electric fencing meant for cows, deer netting on the top. What do you guys/gals think of barb wire at the top, like what is used on the top of prison fences? Could also be razor fencing if it's cheap enough.