The best advice I can give (at least on this topic) is to look for "At the Drop of a Hat" and "At the Drop of Another Hat" in used record stores, preferably in a large city. Like New York. Or London.
I'm not sure this is a great deal of help, but I couldn't resist responding to another F&S fan. Good luck.
Have you heard "Mud, Mud, Glorious Mud"?