I have had a number of units sleeved. Have some on hand actually. They do last a little while longer. But not indefinitely. Am having them done in a brass type alloy. Have not found anyone to do them in Stainless. If you were looking for a better mousetrap, then research putting a stainless sleeve to one. Not necessary to use the new part if you are doing this. You can send the old one as they usually refurbish as well.
Do you know a good surgeon to help with reassembly? He he he Second set of hands might help.
legend in my own mind
Advice is only as good as the person applying it--
Don't make me give you bad advice!
Lemons or lemonaide, whatever your taste provides.