I am planning a new pen for some chickens I am getting. The pen will be 4'x8', and at least 5' tall. It will be built within an existing barn. I am trying to keep the costs as low as possible without sacrificing safety. (The barn isn't totally secure. There have been raccoons in it.) What is your suggestion for wire to use? I have been looking at 1"x2" welded fencing and 1" chicken netting. Thanks in advance!