If you have been doing this all these years then you should not have issue getting to build a new client base. Instead of directing us to Google why don't you share the link because I really don't know what to search for on that Google. For me, even if I have, I would not want to trade with you because bitcoin promotes anonymity but you looking for cash so I can disclose my identity is obviously a no no in addition to you willing to travel anywhere shows some level of desperation from my point of view.
He never said he was going to demand I.D. when he gives you $3000 cash man. Calm down. You don't know the identity of that guy selling a lawn chair that you met on Craig's list just because you saw his face.
Are you only willing to do this for Americans or are you willing to cross a border? Say, a northern border