650/X-2 Anyone know where I can find a pump sleeve?

One of my X-2's had a bored out pump then a plastic sleeve was put in where the prop spun and it got chewed up and spit out. So now there is a decent size gap between the pump wall and prop. So I was wondering where I can get a new sleeve for it or is there a bigger prop I can just find that would fit?
Jordan
 
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