there is a great store in New York that I go to all the time for sheet music when I am there called I think Old Colony Music or somthing to that effect. They have all kinds of sheet music. You might want to try there. I could be wrong but I think it is in the area of 54th street. Sheetmusicplus.com is also another good source I have used where you can find lots of things. Give them a shot and good luck
I would also suggest staying away from Colony--they charge OVER the list price for their stuff and considering you can get it for the list price elsewhere and LESS than the list price online, it's just wasteful.