So fun to see a seller can't provide any real prove about the product and just words. That's how they sold Snake oils in the old days. And, the possible customers asks about the product's quality he just gets mad and curses LOL.
Even if his gear is legit(99% it would be a bunk) I wouldn't deal with this kind of guy, because there will be a problem when you are ordering and knowing he has this kind of attitude? Another big LOL.
Man...~Never Order from him, Never accept to give any info about you to him!