Not sure about your area, that might be pretty hard. Best bet would probably be to just look in the phone book and call every local wrecking yard.
That's what I did recently, and for over here on the west side the best bet was Aaron's, a Subaru only wrecking yard in Seattle. They have a couple SVXes right now. Not sure what parts available, you should probably call first if you were thinking of going there. A bit of a drive, but you could always stop by there on your way to/from the October meet!