KarenThirl - you said you were looking for inspirational stories of AS children who've succeeded in m/s. I don't know if the following is of any help..? Bearing in mind, that although he is AS, he is not severe enough to attend a special school.
My ds who is AS/ADHD was on SA+ almost immediately upon starting m/s school, after being excluded from 2 nurseries. He had a T/A for 2 years along with another ASD boy. The school refused to statement him yet despaired at his violent behaviour and lack of social awareness.
Because of a multitude of reasons including bullying and racism, I eventually removed him and placed him in a much smaller school.
There is now no need for a statement and he absolutely LOVES it. The teachers are very supportive of him and there are other SN children at the school. His behaviour at school has improved immensely because he is happy, he doesn't just get shouted at if he misbehaves, they explain to him what he did wrong and why he shouldn't do it again. They don't do this only with the SN children, but with ALL the pupils.
I could go on, but wanted you to know that m/s (but only a very good m/s school) has been a success for my ds. I dread to think what could have happened had he continued at that awful school.