Canal Caravel to accept the Ring 80 Keystone

[Egon the Monkey]

Currently it wants the Ring 84 Key and the Ring 86 Keystone. It's possible to be robbed of or otherwise lose the 84 Key, and regaining that key requires a full party to do the ring challenge. It doesn't make sense for the Captain to not accept the Keystone of Ring 80 as proof you can reach 82.