I have found a store in Vietnam which is very reputable and they do have 64GB Black in stock. and the price is the lowest I can find, its only US $701, as of today's exchange rate.
http://www.thegioididong.com/sieu-th...a-n9-64gb.aspx
This is a confirmed reputable store, my gf is from vietnam and she knows the store personally.
She doesnot know anyone in the town who could just get the phone and ship it right now, but she is going back for xmas and will be back in January, so if anyone has any other contact in vietnam who can get it from the store and ship it will be great.