Try calling the place in Wickford and see if they have one. Personally I'd spring for a new one, even if they have one it probably needs to be rebuilt after sitting around with the seals drying out for a couple of years.
I'm switching to a different type engine so the cylinders I have are the wrong type. I'd just prefer not to spring that coin for new right now and worry about that later...
Doesn't seem like the best place to save a few bucks, but maybe that's just me. I always like to buy new on stuff like that and besides my wife has a real good job so why skimp.