Selling a Replacement

A family member gave me their water damaged AT&T iPhone 6/64GB. Didn't have Apple Care. He got it unlocked via AT&T website. I called Apple and asked since iPhone was unlocked would I get a $299 unlocked replacement. They said they couldn't do that and that I would have to get the replacement unlocked from AT&T.

I got the $299 replacement today and went to AT&T site and requested an unlock. I've done this on my other iPhone lines under contract with success.

I have all the accessories and the original box. The iPhone is still in factory replacement plastic. The box of course has the IME# etc of the damaged iPhone 6 but the replacement has a different IME#. I'm waiting for the unlock to hopefully go through.

What's the best way to list and sell this? I figure at the very least I can make some money.

 

Thanks. But should I list it that's it's a replacement since the IME is different than on the box.