i got new white sette bars on today they seem really nice and they were only 30 bucks im finally done i think with this bike...i love the way it rides and looks
the STP frame is identical across the whole series... you are correct to assume you would need a derailler hanger as the tensioner takes place of the hanger...
I don't think they are identical as the SS frame doesn't have a bolt on chain guide mount on the BB... However, I have only seen pictures online and it's possible that the 2009 frames ARE all identical.