Casey's book was published 19 years, a lot has changed in that time.
Much of what you will find in the "complete" books, Casey's, Calder's, and others deal with systems that won't exist on an O'Day 22, systems like elaborate electronics, plumbing, engine and transmission, etc.
You might do better with a collection of books on specific topics, starting with a shop manual for the outboard, then a book on glasswork (Take a look at the West System manual, its free or very cheap), and so on.