jdp47, welcome to Nikonians. You have some great gear for sale here so GLWS. On the other hand, it would be nice if you can provide some assurance for potential buyers considering that this is your first post and you are asking $15,250. Something like your Ebay account or another forum rating score.
While I am not a party to any of this, I had similar thoughts about this sale. I did a little digging and came up with a John D Powers living in Grafton OH. I think a person determined to purchase from him could satisfy their concerns by simply calling the person on the phone to settle the final details.
While I am not interested in any of this equipment I would think that potential buyers would, at the very least, want to see photos of the gear. That would help explain while some of the equipment is still here 2 months later.
Graham From St. Augustine, FL. "I like photographers, you don't ask questions." Ronald Reagan to White House Press Photogs