I have thought about this as well. What I think we're settling on is doing most of the WTM suggestions. By using FLL and WWE it's a do the next lesson like a text book would be but it seems more child friendly than a straight English text. For spelling, we plan to use All About Spelling which is working at your own pace with a do the next lesson plan. SOTW seems to be the same way. You can just do the next thing and decide how much you feel like adding from the AG for the elementary years. This year, we are using a science text as our base (we got it free from my school teacher Aunt), then we'll add library books to flesh out some of the subjects. I think this should work well for us since we can take things at our own pace and not feel like we are behind on the schedule.