Quoted for image, save the people some effort from clicking on the links.
This is the total opposite of the guy who was offering the iPhone 7 for $350 USD. Just have a one question:
Can you power on the phones to see if the phones actually work?
Good luck selling these, I would recommend selling these on auctions, since I am pretty sure you can get a better price for those, maybe around 600 USD, but dont take my word for it.