That pup needs a ton of exercise as mentioned by others. A tired dog will not destroy anything. Crating when nobody is home is an absolute must when nobody is home. As far as beds are concerned, I don't invest too much on fancy beds until they are grown past the destructive puppy phase. Used cheap $6 fleece blankets for my dogs when they were puppies, as they'd trash their beds.
I don't recommend leaving puppies unattended in the year for long periods of time. That's a recipe for mischief. Also, you run the risk of him escaping the yard.
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