I tried to post this once already but it did not work hope it works this time lol We have a 12x12 goat barn we are turning into our coop and run From this view our house is to the right. We are planning to put a 4x6 in the back right corner against the right side wall. (The inside wall in photo has been removed). It will be off the ground so the entire 12x12 can be used for a covered run. The floor is dirt and unlevel (that is what you get when you live in the mountains) so wen constructed the coop will be 2'10" from ground in front (long side) and 3'4" from ground in back (wall side). The inside will be 3' tall in front and 3'4" in the back. We will be putting the vents around the top edges. So here are my questions: 1) how many inches should the vents be themselves measured from the ceiling down? 2) how high from the floor should the roost be so they don't get a draft? since the coop is not that tall 3) does this layout look good?