Hi. I have a friend that has a deaf boxer- he is white w/ blue eyes. Beautiful dog!
They have trained him with hand signals, and have had no problems. For obvious reasons, he is a indoor dog, and only goes out on a leash.
They have told me that he was actually quite easy to train, and is very obedient- more so than their hearing dog.

It looks like you have received some good info from people here at Pet Talk, and I wish you luck- keep us up to date on things with Scout.
And great name BTW, my dog is named Scout also!