Thanks for the response... very helpful. I think I might have lucked up... but I will know for certain after work. I just found out that a friend of a friend has some old ford baler parts, and he actually has a whole knotter assembly. I sure hope it works out.
If it doesn't, I will definitely try your idea of tracing down the part number on messicks and contacting Fawcetts. I tried ordering the part from Messicks, which is how I came to know that it is discontinued. But, they haven't responded to my question about cross-matching parts. Maybe they will, though.
It is strange how this stuff is both irritating but fun at the same time. Irritating, that I bought equipment that broke and have crop wasting on the ground, yet fun in the inventive and investigative sense. Or maybe I'm just masochistic.