There's a health-food store in Ocala, where you might look for the non-gluten, non-dairy items. Whole-foods in Orlando as well---if you really need to be on these items it's worth the drive to stock up. I pretty much eat clean. I can't "do" dairy (milk) or yeast or soy neither so my "diet" pretty much is protein (eggs/meats), veggies and fruits. As the book states we are "allowed" nuts (not peanuts) and olives as well as limited dark 89% chocolate bars once in a great while.
One has to get one's brain wrapped around all that the Wheat Belly book talks about (also by reading the cook-book as well). It takes time to get over a life-time of eating habits but it's well worth it!