Have you checked out your local freecycle site? I received enough materials from 1 post to put together 2 coops and 1 hutch. It's a great site to not only receive, but to list & get rid of things you don't want anymore without having to load the up and drop them at donation.
If you haven't already go check to see if there is a site near you on freecycle.org.
If you haven't already go check to see if there is a site near you on freecycle.org.