While driving to a friend's house from a different starting point, we took Route 79 through Freetown, MA. While traversing the town center, we saw a sign that said "Rare and out of print Cookbooks". Big, numerous cars in the parking lot, but closed. :-(. I did take down the phone number, and will keep trying until I get someone to tell me when they're open, and why they chose such an amazingly off-the-beaten- path site for their store.
Once I get inside, I'll give you the scoop. If they're good, maybe they'll have a website and do mail order.