herders out there. I am planning on getting a billy and 2 nanny goats and I need to know what kind of fencing works on keeping them brush busters in. How high should the fence be, how far apart the post and what kinda of cost am I looking at. I am looking at about 1800 liner feet of fence( about 3 acres fenced in). Will a barb wire fence work if the bottom rungs are close together. Can a billy hold his own against a coyote?