Building a coop for my silkies. It is 3 ft wide x 8 ft long and about 3' high on back and 4' high on front with slant roof. It will be solid wood with external nesting boxes. Was thinking about raising it off the ground 2ft will silkies go in that with a ramp/ door that I close at night? Next questions is about ventilation. I was thinking about putting about 6" of hardware cloth all the way around the top. Would that be enought vetilation? Should I add hardware cloth on the 2 - 3ft doors? Want them to stay dry. Please any advice is welcomed