Only just come to this thread but I have to say that I would try to secure the area that the dog can go into with the poultry etc. If this was done during a prolonged holiday time so that the pup could be observed but exposed to the final routine gradually, that would be the ideal situation. Perhaps some form of electric fence?
Dogs love routine and ours do in fact just chill whilst we are out.
I'm not a huge fan of runs and kennels personally and would worry about a tethered dog but as previously mentioned, working collies are tied up and so are Husky and Malamute dogs.
It is also true that destructive dogs are usually detructive in the 30 minutes after they have been left. If this is the case and you have a stressed out dog, then if you introduce a dog walker in the middle of the day, this increases the number of times of stressful exposure.
Full respect for asking the question. Just remember that the dog is a companion and a pack animal. It's pack mates don't have to be dogs or humans. You should also bear in mind that the temperament of the individual dog should be taken into account. If you took two dogs from the same litter, one could cope with a situation and the other would stress out.
Perhaps when the time comes, the right dog will come your way. lets hope so.
By the way, not all rescue centres are good at rehoming. The main one in Birmingham will let anyone have a dog, any dog!
Ian