@LizardKing we checked out the only special needs school there is around here, there is one primary and one high school both miles away though he would get transport.
I don't know if they are the same as what you have used but basically we went into the class he would be going in and half the students couldn't even speak in any meaningful way, the other half were immobile. The school for them looked brilliant but like I said we felt George would miss out on the social stuff. They'd be great for the physical stuff.
We visited about 10 primary schools in total only this one stood out as suitable. Pupils genuinely walked down corridors, all polite and greeted the head teacher as we walked around, the head teacher knew all their names.
The first thing that did stick out as well is that it has been the head teacher that has shown us around, talked to us, and also the deputy who is also one of the senco.
The others it was always a secretary.
It's just a small primary as well George will be able to walk around, the others some were huge and we felt George would get lost in a sea of children.
One place wouldn't even let us visit and simply told us we'd missed the open day.
Where he's going they even invited the nursery head teacher to visit and they're planning on going to his nursery for a few days to interact with George as well. He's already been given a uniform as well so he can get used to it, but they said they're not very strict with it anyway so send him in what is comfortable.