Hi! I'm very interested in your phones! 
Cool.  Six phones for one and 50 bock's, can't beat it!
It does sound like a great deal! I was hoping you would maybe give them to me for $45 since that's all I have on me right now. I can come to you!
Do you have a T-Mobile phone to trade?
I do! 
I do believe we have a deal.  I'm at 1111 Ellen Street in Tracy. When do you want to meet?