Schools for autistic son

[kcal]

We are looking to move to New Zealand early next year and are considering schools for our 5 year old child who is autistic. He has NZ citizenship via his father so visas not an issue. But, we are interested to hear of anyone's experience of the NZ school system as compared to the UK system in how it supports special needs kids. Our son currently gets 1-2 hours one-to-one help per day but as he isn't profoundly autistic and is around a 4 or 5 say on a scale of 1 to 10, then he isn't going to get any ORS state funding. Has anyone in a similar situation successfully funded support for their child where the state doesn't offer anything? Any insights or advice on NZ schooling for special needs kids much appreciated. Thanks.