hkg3
I have one and love it. My dealer got it from from either Lew Horton or RSR.You might give them a call on the outside chance that they still have one or know who might. I wanted the 44 mag to go with mine, but waited too long and missed my chance.
Also, I recently had some luck locating a discontinued model on the smith-wesson forum (classified section). They may be of some help.
Good luck