If you are wanting to add the bible in with your SOTW studies, biblioplan is a good curriculum to look into. It includes living books to use with various grade levels. I can’t speak from experience, but it looks very good. It is on a 4 year schedule and you can also choose to buy the whole package or chose to buy ala cart.
http://www.biblioplan.net/
I also think you should go with what works for your family. I read SOTW to my 8 year old at night. She really enjoys the stories. We are covering the 1600 – 1800’s right now and the only thing I don’t like is that there is not as much American History as I like to cover. We work on our American History during the day using living books and just use SOTW for bedtime. It’s working quite nicely.