I have 3, going on 4 chicken tractors. Half of them are relatively light weight, but it is still hard to move around if you are alone. The other two are going to give you a workout if you move, plus I question if it is going to pull the thing apart by moving it too much. I need them to be portable. Please advise where I can get some wheels. Also what to call them, because I went to a local building supply place and the girl treated me like I was an idiot.