Hi ~ Your husband sounds like he's at the breaking point -- is there any chance he can see a therapist? He could use some therapy right now. His depression and anxiety is getting the best of him, and he's liable to make some decisions that are not the best for him OR his family!
If he talks to his doctor, his doc can refer him to a good therapist who can help him thru this battle he's in. I hope you'll urge him to do this. If money is an issue, his doc can put him on an antidepressant. That's better than nothing! His doc might even be able to give him samples of the antidepressants too, to save even more money.
So talk to him about it. He needs to do something. I'd hate to have him do something foolish, only to regret it later. I wish YOU the very best. God bless and please take care. Hugs, Lee