read, read and go to more al anon meetings...i am not here to tell you what not to do about the wedding plans...that comes from you and your own heart...if you read posts from other women/men that are in marriage with a A or NA, you will see a pattern....
RECOVERY for him is just that..for him (and a serious (HONEST program) commitment for 1 to 1 1/2 years)
so? that means you need yours also and possibly family and friends also...no harm done...