Where can find chicken coop plans for a 50 bird house?

ok,so im looking to make about 8 of these for the farm.I need free chicken coop designs/plans/blueprints to house around 50 chickens(layers).

could you please recommend easy to follow plans,give links and everything.

also are there any legal livestock auctions going on soon,in essex?








I'm not sure about 50 chickens but there is plenty of information on chicken coop plans on this blog.
Here's another good site:
http://www.backyardchickens.com/coopdesi…
try this guy he has the bible of chicken coops
Try this site. It has links to some small and larger coops.