Most things on Ebay are purchased without being able to hear, see or touch them, so there is a degree of trust one needs to have to proceed. On the other hand, the seller has 343 sales, I believe, with 100% positive feedback. That for myself, is good enough to take the chance on something I want. There is only a little over 3 hours left at this time. As they require a pick -up, they might not sell. Did you ask him if he wants to make a deal outside of Ebay, or after the ad times out? that way he will not have to pay them a percentage of the sale and perhaps he would be more amenable to let you hear them.