We did much the same as Joe Offer did in post #4 and can confirm that the church in Housatonic is a bugger to find. We did eventually but everything was locked up.

Anyone wanting to find the original restaurant - which when we were there was called Theresa’s and also closed - should make their way to the Red Lion Hotel in Stockbridge (great apple pancakes for breakfast), head about twenty yards east and you’ll find it at the bottom of the second passageway on the right hand side.