My personal opinion is that you should explore a few more options before rushing him to micki so fast. Even though he isn't housetrained, he could still be fostered and rehomed. If KayAnn is willing and able to offer her home as a foster, I would take her up on that offer. It will save Chance from a lot of stress on the airplane.

Meanwhile, I would be visiiting him every day and giving him some outdoor stimulation. Dogs go kennel crazy a lot and it is good that you're catching it early. He is completely redeemable and everything will work out.