Good rolling tobacco stores? (Istanbul)

Hi, so Ive finally arrived in Istanbul, and I was hoping for some recommendations on where to buy high quality tobacco. I am from the US and I typically smoke a brand called American Spirit, It is an organic, additive free brand that has a very nice taste. I know that that brand is not available here, so Im thinking that my next best option is rolling tobacco, but so far all I have seen in stores is Drum, and stuff like that. Which is not what im looking for.
( Anti-smoking healthy types need not reply, I am a grown up, who is capable of choosing weather or not to smoke, I know its bad for me blah, blah, blah....)
THANKS for any help :)