Hello, can I join please?
ThreeBee, my ds is also tiny and skinny and developmentally he's behind his brother, who is 8. I tend to think of him somewhere between a y2/3 child in many ways.
He has been horribly bullied throughout primary school and is an easy target. He's also really struggling socially as his peers gain speed towards becoming teenagers and is being targetted again, although currently only verbally, not physically. 
Despite everything he's been through at primary, he is distraught at the thought of leaving, to the extent that he can't bear to miss a day off school, as each day he misses is one day he won't be there next year.
He has a best friend, who is incredibly loyal to him and is going to be heartbroken when he hears for certain that he isn't going to be able to go to the same school as him - but the fact is they don't want him, they don't want any children with SEN and have refused every statemented child this year.
Ds does have a hard won statement, that was only finalised during last year's summer holiday and has yet to be properly implemented by the school - not for the want of trying. Ironically, we pushed for a statement so that we could name the school he wanted to go to, as we were told that academies can't refuse statemented pupils. 
LA have failed to name a school for him (deadline was last Friday) as thanks to the Academy refusing to take him, they now cannot place him in any other ms school in our area, as they are all essentially the same size with similar resources. They have fudged naming the statement, so we have to refuse to accept it whilst we try and get things sorted.
We are currently pinning our hopes on the out of area ms independent that the inclusion team recommended and want him to attend. There are several other children from our area already attending the school and it has an excellent reputation for children who have ASD.
He has an interview/chat with the HT next Tuesday and we've been told that if they are happy they will agree to be named at that point. If not they will invite him to spend a week at the school to see if he's suited to it!
They already have his statement and dh and I have visted and met the staff and HT. It was so lovely to go to a school where every member of staff is ASD trained and able to immediately discuss how they would differentiate for ds's needs.
I'm ridiculously nervous about the interview, but then, if he does get in, equally terrified of having to put him on LA transport every day for a 45 minute journey. Our local primary is literally 3 minutes from door to door, so it will be a big shock to his system.
The whole thing is just horrible and scary for both parents and children really. Hoping we can support each other on this thread and looking forward to getting to know you all.