It's funny because he puts the onus on the buyer to suggest something like that. It should be his responsibility to do that in the first place. TBH, one could say that he misrepresented the contents with the screenshots that he put up. That's not what you're getting.
Even if legit samples are ever provided, I doubt they will get someone at remotely that price. I'd say that 2k might be the top for him - maybe 3 if he gave it to an auction house.