I'm wanting 10 chickens, and I've already dug the holes to make an 8X8 floor plan for the coop. Next, I'm going to dig holes for the posts for the run... but then I wondered, for 10 chickens (what if I get a couple extra?!) how long should the run be? It will be 8 feet wide (coming straight off the sides of the coop) and then extend out....how far? I'm thinking of putting in 4X4 posts into the ground for the Run.. is that overkill? Is there another post I can use, or is that the best way to go about it? The coop is being put on 4X4X8 posts. I want to be able to walk into it without having to duck or crouch in there. Should they be 4X4X12? How far apart do you space them????