OP,
S Pass at SGD4000/month is the minimum you need to be able to bring your family in. Frankly, you need way more than that to make it work. That's why other regulars here advised going for EP level instead.
Sounds like you're from a very niched background. I wish you luck in securing a very good package for a comfortable life for your family.
For the sake of your family, please make sure you are prepared for a mentally and morally sterile environment for your child's growth. Takeaway notes from this discussion: Schools are expensive, cars are expensive, healthcare is expensive, property ownership is expensive, real-life education is expensive.
Income tax is not, local food is not, local products are not, public transportation is not.
Cheap and subsidised stuff is only available to citizens. Are you ready to trudge for minimum 8 years before you could even be given an opportunity to join the citizenry?
The rest of us,
If OP has rainbow ideas of Singapore, why ruin it for him? Let him experience it himself. Plus he said he has done his research. Let the results of his research speak for itself, especially after the typical one-year honeymoon living in Singapore.
Yup, we all know that feeling, very much. Sometimes it is hard to relay this experience to outsiders who are already in love in Singapore.
It is the very same way many people here are in love with Australia, and would not stop at anything to move to Australia.
), Ikas, Ashton Carter, Hays, Kelly, Aurec(also has office in Australia) etc. Most of them are British but many are Australian as well. I have plenty of them in my Linked In connections. 
