We used this on our tent. Use the hose, let the warm water drain out first. Spray the roof of the henhouse with the cold water. Not a lot of water, little more than a dribble. The roof will cool down then the air inside the coop will drop in temp. Turn off water. You can do this any where...
Just my two cents, breed as suggested above. Pick the time of year you want chicks hatching and work from there.
I bought a rooster and a hen who were a year old and raised in total confinement. They did fine free ranging, following my young hen around and learning to forage.
You can have only one goose. It is advised that you get it as a gosling so that it sees the chickens as family. Some will sound the alarm only but only that. Others will attack. Research breeds to find what suits you.
The award winning breeder I bought my Brahms from showed me what she feeds them. It included garlic. On another plus said you would be buying a product that is sold in
Grocery stores, you can cook with it.
My chicks would just walk under the bottom wire. The adults hopped between the two lower wires. On poultry netting the bottom wire is not charged and chicks walk over it.
Those roosting branches are too close to the wall. For chicks you just put the branches on the ground and they will eventually sit on them. You have more nesting boxes than you will need. They will decide which ones they like best.
You don't need an 8 foot barrier. Besides, my orpington hens and australorp roosters would fly up to the 8 foot beam in my greenhouse.
Better would be to run a wire about 6 inches from the top of the fence and about 8 inches to the inside. When they try to fly up to the top of the fence they hit...