I am sure we can get insurance for this, as this is not just a generic wallet or coin with "digital value", this is a unique coin, the only one of its kind in existence!  I have shipped many rare coins insured (numismatics mostly), and if we set it up the right way, meaning we treat it as a rare numismatic piece, not a physical wallet, I don't see why it wouldn't work this time.  However, if anyone wants to bid with a disclaimer that the bid is only valid if it can be confirmed that the shipping can be insured, I am happy to abide under that condition.