HI, I am so glad you have changed your mind. Just keep him crated when your not home and he won't tear your house down. He should be getting better about now. When you first took him, he was taken away from the only home he knew, so he was very upset, nervous and wanted to come back home, that's why your house was tore up. Once he is used to his new environment it won't be so bad. He will still chew up everything in his site as I have warned you, if you do not watch him and crate him while you are gone!!
Keep me posted….