Rabbit, I have one from a 53K--I think they are the same. It's in working condition and I don't think it leaks, but I don't know when or if it's ever been rebuilt, so I would probably suggest that you do rebuild it. I don't know what one would be worth, but it wouldn't need to be very much. Let me know if you want it and I can ship it to you. You can also contact me by my email on this website.