Peel and sell the carcass. Minimal premium and not worth the risk.
Peel it carefully and the peeled coin can be worth a decent amount

This is the answer unless you want cash. Then stacks or heritage is the answer and you may get just over btc value but pretty sure it’s paid in fiat (I don’t sell on auctions but so others are more knowledgeable in this area)

Lastly, nobody should ever send btc directly to this guy…. I’d only use vetted  escrow like Mopar