Okay, I finally went ahead and counted out the number of recipes in the book (and had to shush my husband once while doing it -- sorry about that, love) so that I could figure out how long this project would take.
Including some variations on recipes, there are 264 all together. If I keep up on the five recipes per week, this will take 52.8 weeks. So, this time next year I should be wrapping the whole project up.
Wish me luck!