Hi,
Can I just mention that I once lived next door to a Cocker Spaniel that had been debarked (I'm in Qld). That dog still barked all day - a horrible wheezing kind of bark. Drove everyone insane and we were so glad when we finally moved not to have to listen to it. He sounded just like he had laryngitis.. some barks would come out in a high pitches squeak, other times it sounded like he was coughing up a hairball. Occasionally barely any sound came out at all. I'm not sure if this dog "learnt" how to be heard.. or the debarking was not done properly ..or if this is a very rare case. So just be aware your dog may still be able to make his bark heard.
Best of luck what ever you decide.