S3 will not be from Bitmain as it is not being made at this point. You have to get C1, S5, etc to get new one from Bitmain.
Now if you do want a new S5 you could email Bitmain. If you email them and ask if they can help I would guess they could find a way to make sell happen through email.
And again if S3 best bet is used market. I would go look at ebay.
i want will buy from amazon this used s3 > http://www.amazon.com/1-Pack-AntMiner-S3-441Gh-SHA-256/dp/B00LETT8VS/ref=aag_m_pw_dp?ie=UTF8&m=A2JMUGFS4HCQJI
Is there any reason it has to be that specific one? I think you might be able to do better on price at other places.