I'm shopping around for a used CZ-82, and found a few (a ton actually) listings on GunBroker. One of the better deals is from a seller who uses a stock photo for their listings. The handgun sold may not necessarily match the picture in condition or finish.
Anyone ever bought something online without having seen pictures of the actual handgun? Obviously, with a CZ-82 some scuffs and wear are to be expected, but I'd hate to end up with a weapon that looks like it's been through a sandblaster or a bomb blast, but still be technically "functional."
Treat it like any sale. Check comments and feedback from other buyers who have worked with him. Ask him to send pictures of the actual gun you are buying. Check how long the seller has been on Gun Broker and how much he sells. Gun Broker is pretty strict with it's patrons. If this seler sells a lot there he doesn't want to loose his account. Ask as many questions as you can and request as many pictures as you can. Assuming the seller has nothing to hide they will do anything they can to make you a happy buyer who will leave good feedback. If they aren't helpful move on to another seller. A CZ82 is a great gun. I love mine but it is not a rare gun. If this seller won't work with you there are many others out there.