My heart just breaks for you.
I can't imagine giving up a furbaby of any age let alone one that is that age.
God has blessed me with the 3 that I have had. No real issues.
I so wish you could get someone that could help your little guy with the barking. Would your husband not agree with trying that?
Perhaps it would make a big difference to your husband if that wasn't an issue.
I'll keep you and your little guy in my prayers in hopes that you can find a solution that will allow you to keep him.
Just so sad.