In terms if resources I really recommend listening to/watching the talks by Karla Fischer that are available on line, they're more about adults and teens than children - but are very much from the perspective of some who is highly intelligent, which both you and your DH might find very relatable.
She also has a Facebook page (Karla's asd page), which provides a steady steam of articles etc. I find her talks more useful than her info graphics.
If you google Karla asd, you'll get a bunch of relevant links on telhe first page. Search for Karla on YouTube for some videos.
