One thing I'd put out there: AA is great if it works for you, but it's not the only game in town and can be hard to love. If it doesn't work for you, SMART and lifering are both popular and well-validated options.
It's a logical approach to repositioning alcohol as a poison that somehow 90% of our population embraces as normal.
Once in a while he'll have dreams of drinking or the urge to drink. Whatever works to keep you sober and healthy, go for it!