Hi Mandie and welcome to the SWK forum!
It's a little quiet as people recover from summer holidays and back to school but feel free to have a look at posts on here and the regional board for the South East.
We have parents and kids from all different backgrounds and situations. You may find the 'special needs' boards of interest for support and advice.
SWK are also extending the range of holidays for 2017 so you may find something to suit your family there, there's a couple of great breaks at October half term too - one at Milford so not far from you and another in the Midlands. If you fancy trying SWK without your son to see what it's like there is an adult only spa night on 8th October.
Hopefully see you soon