I'd like to say 65 but I'm afraid 64+ is tops for this girl. The obverse is mostly clean but there is some scuffing in the cheek and the reverse fields are too baggy for 65. That said, I have seen worse on 65 slabs so...
I also say MS 64, but I think the professional graders are quite generous when grading this series, so I would not be surprised if it grades 65.
Put your glasses on Ken that puppy almost goes all the way around the reverse . But you're right very cool Jack!