If anyone pays that guy any money, then you are an idiot.
I just don't understand how anyone can be that desperate to know who she is that they would consider doing this.
What's to say he'll even give you that info anyway?
If you shell out money and get nothing in return, you'll feel like a prat.
And you've also got to ask yourself why this information isn't readily available. He might be giving away information that he shouldn't be. The guy sounds like an asshole and I wouldn't trust a word he says... or his morals. This sounds like all kinds of wrong to me. Move on would be my advice.