Dover Court is OK, it all depends on your specific needs, most of the children who require special needs go into individual needs classes, but integrate for some subjects. Some people I know think it is great for their kids, others have had huge problems with it and taken their children out. Their administration is very staid and old fashioned and in a lot of ways so are their techniques. Not running them down just stating facts.
There is also the Genesis School, which is fairly small and caters for children with a variety of special needs, but is not a mainstream school at all. It does have a very caring and attentive teaching body though.
You could also try the Zee School, it is only a small school, and only takes up to age 10, which mainly caters to children who have problems immediately integrating with mainstream classes. Again lovely caring place.
A lot of the
International Schools have special needs people working there, and may allow you to enter and use teachers aides with your child to help them blend in. this may be a good idea for your eldest. It is well worth contacting the different schools to assess their reaction and also their attitude to teachers aides etc.
Good luck in your search, it is never easy moving with special needs kids, but there are quite a few of us here in the same boat!