Two places for vintage presser feet:
Guy Baker - great to deal with!
http://www.sewingmachineparts.net He will gladly talk to you on the phone. Has a lot of hard to find stuff.
The Sew Box -
http://www.thesewbox.com This is Charlene Phillip's website - she is the author of "The Sewing Machine Attachment Book". Also willing to talk to you on the phone. I found out by talking to her that she lives on about 15 min. from me!