Hi, I'm also new here, and I think there are others here who will try to reply to your concerns. However, I'm confused did you state that your principal accepts that you ds is gifted/LD and your school works with 2E but will not work with your son? Anyway, here is a thread from this forum that may help, it has info on low coding scores.

http://giftedissues.davidsongifted..../all/gifted_scores_and_severe_proce.html