I'm new to this and would like any pictures of wheel assemblies for a Chicken Tractor. Some seem to complicated. I am not a carpenter but, my neighbor is and is advising me on materials. Chicken Tractor will be mostly on a hill side so, I was thinking one end with wheels and then removing them after I move the tractor. Would like to move it everyday for fresh grass. Will make the run removable from the coop but, we will see how easy or hard it is to move first.: