M645 Power Winder

Was recently given a power winder for the M645 1000S. However, it is missing the winder attachment that mounts between the camera and winder. Anyone have any idea were I might find one. Haven't seen much on EBay. I've attached the parts schematic from the manual (see item 11). Thanks in advance

They are hard to find and also can be pricy. I just sold my winder with adapter for less than I wished.... so if you find a winder with an adatper, it actually might be worth it.

Thanks mweintraub, the guy I got it from is checking to see if he can find it anywhere.