I would do 1.15 BTC for this with escrow but i would need someone who is familiar with fakes.
Happy to authenticate any Casascius coins for you or anyone else.

How would that work? Would a HD zoom call do the trick? I really dont mind the authentication, it has corrosion spots so you already know its about 10 years old. Im slightly worried about the tiny & almost non existant lost package during shipping which would get doubled if its shipped twice..
If I declare the full value of the coin for shipping insurance reasons, would the buyer pay the duties on it? Have you ever authenticated these coins before? Whats the best way to do this?