Oh my goodness!! I am looking for the same shoe. Have only seen them on ebay. I even researched NM, SFA, and all of the other websites. Nothing.....but I am tempted to get the pigalles in gold with the grafitti on the side-hot and different. Anyways, I digress....will be more that happy to let you know if I spot them anywhere.
I have never seen the 120mm pigalle online, with the exception of Ebay. I know that BG currently has them in store in black patent, wine patent, and blue patent.
They retail for $550 or something close to that.