I would buy the biggest piece of land I could afford. At least 2000 acres or more to say 5000. I would not do the fence. Since no matter how big it is any trophy that comes out would be considered a pen raised deer to others. I would invest in large rack deer with good genetics and have them released on my land. And like GMATT said I would invest in a core area, then let others patrol and hunt the out skirts for me.