if you want, you could put the money into hook again system and after you get it back throw a couple frames with it and see..
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I never dreamed it would be me, My name for all eternity, Recorded here at this hallowed place Alas, my name, no more my face. "In the line of duty," I hear them say: My family now the price to pay. My folded flag stained with their tears; We only had those few short years. The badge no longer on my chest, I sleep now in eternal rest. My sword I pass to those behind, And pray they keep this thought in mind. I never dreamed it would be me, And with heavy heart and bended knee, I ask for all here from the past: Dear God, let my name be the last.

As long as you tell the person the entire story to start with I think you are fine, buyer beware at that point.   Telling the entire story will tell them that the ball doesn't have a ton of games on it, that it may well be somthing with the polish or the polishing process, but this way you will have given fair warning and let them take the chance after that.