Just as a general comment, it is a bit of a waste detoxing in rehab. A medical detox ought to be done first and seperately, followed by rehab, then a good long term plan, about which the rehab will have some suggestions.
Look at the detox as the end of the drinking part, and the rehab as the start of recovery. It will be much more effective if the person is not wacked out on detox drugs.
What you most need will be found where you least want to look
All BB quotes from 1st Edition.