I really like the appearance of the Garden Coop and think I will buy the plans for it. On the site, he estimates material prices at Home Depot to be $660, and when I searched the archives, I found where someone had spent considerably more. So this question could be for coop construction in general, but especially for anyone who has looked over the Garden Coop plans: what might make a difference in keeping costs down? Could I could get used materials (and from where) that would cost less than new but still look nice? Another thing...he says you can make modifications fairly easily. I was thinking that I really don't need it to be 8' tall - I think 6' would suffice. Would that provide any savings? Or is the 8' due to door height?