K.,
First I want to acknowledge what a great mom you are to keep digging to find a solution for your child. There are so many parents that take "this is the way your child is" and stop looking. Good for you! I for one am so proud of you! Keep up the good work.
There are some great books on this subject... I will try to find some and email them to you. Gluten is in so many items.. I have a friend that has Celiac and can use things like soy sauce and things with certain starches in them because they add a gluten substance in them.
I know that you can probably find some great info working with the DAN program and bet they have great references for you.
There is also a great interview within a series called "Parenting Can Be Easier" which deals with special needs kids. Gene M has done some amazing work helping children with environmental intolerances.
http://tinyurl.com/ParentingCanBeEasier
I highly recommend it!
Also, Jenny McCarthy's book "Mother Warriors" is a good book to help you keep the faith that you are on the right path and to keep you motivated to keep doing what you are doing when the easier path looks... well, easier.
All the best!!!!
C.
www.passionparent.com