Sorry for all this you're going through, but I think that needs to be sober before he can possibly tackle any of his mental health issues. I gathered you feel the same way too- inpatient would be a great start if he will ACTUALLY go next month. Kudos to you for no longer funding his drinking! Check out
www.empoweredrecovery.com for more info on the addiction part if you'd like. There's a free e-book for download and the approach is somewhat different from Al-Anon. It will not provide you help for the mental health side though, but it is a great read for anyone living with an addict of any kind.