I believe you can make a copy of one of the published Scott serial number correlations to date of manufacture. Also, have your friend make up a bill of sale for you that states the date of manufacture. Put the documents in with the gun and you should have no trouble importing and owe no duty. Pick it up off the luggage belt and walk out the door. Oh, do pack the case in a cardboard box that doesn't scream "gun box." Also, c all ahead to the airline and notify them you will have a gun in your luggage. And check export laws.

DDA