Please fill out your profile info so we know your geographical location. Advice for someone living in Florida or Equatorial Africa will be different from what we might give to someone living in Minnesota or Greenland.
Those prefab coops are mighty charming, but never practical. They are almost never well ventilated, and probably won't stand up to a predator determined to get to what's inside. A storage shed modified as a coop would be a much better way to spend your money.
As long as you have a watering system that will keep water clean and fresh for a week and a secure method to dispense food, and a setup secure against predators, there's no reason you can't leave for several days. Most of us have someone to come check on our flock once a day if we are away since chickens have a knack of getting themselves into trouble and it pays to have someone to come by in case one needs to be rescued from their folly. (You'd be surprised at the things chickens can do to get into a pickle.)
An automatic pop door isn't required as long as the run is secure and the climate isn't overly harsh.
Those prefab coops are mighty charming, but never practical. They are almost never well ventilated, and probably won't stand up to a predator determined to get to what's inside. A storage shed modified as a coop would be a much better way to spend your money.
As long as you have a watering system that will keep water clean and fresh for a week and a secure method to dispense food, and a setup secure against predators, there's no reason you can't leave for several days. Most of us have someone to come check on our flock once a day if we are away since chickens have a knack of getting themselves into trouble and it pays to have someone to come by in case one needs to be rescued from their folly. (You'd be surprised at the things chickens can do to get into a pickle.)
An automatic pop door isn't required as long as the run is secure and the climate isn't overly harsh.