Get a copy of Teach your Child to Read in 100 Easy Lessons by Siegfried Englemann. It’s scripted for the teacher. Each lesson is about 16 minutes. He’ll be reading in no time.
I pulled it up on amazon and will most likely buy it but let me ask you; does it get alittle more advanced early on after the sounding out of letters? Teaching an adult is different than a little one, as he’s had some schooling (although the schools are pathetic). He knows the alphabet and sounds of letters so I don’t want to get bogged down with things he’s “mastered”.