Just an update for those who are still curious on bringing back SVR from oversea...
I have bought a pair of SVR from Thailand yesterday, manage to clear the custom without declaration but didn't make it to Singapore. Feel very sad & disappointed about it.
It is really a great experience to see many nice & drooling SVR over there, very tempting and the price there I could say is reasonable bcos we see on the cost we travel there. I hope the next time I am there, I will bring them back alive.