We have some used trex decking and we want to build the same coop as this photo! Can you share your blueprints? This is our first time building one and we only have so much used trex and cannot waste. We have 4 ducklings, welsh harlequin and cambells. They will be about 5lbs each, will this coop (house part) be big enough? They will be in it just at night to be protected from predators. Thanks!