The fact that both copper and tin was aboard (isn't that what it said? Oh geez...) could mean the ship was on the way to a place where bronze was to be made, in which case it seems likely that it was headed for somewhere in Britain itself. If it arrived without copper, then it
picked up copper in Britain.
I'll love to see any pics from this find, particularly that sword and the bracelets.
Since the ship was in 8 to 10 meters, which is well within ancient diving capability, it seems likely that the entire crew perished -- unless salvaging only went on a little while in those kinda wild waters, to the point where the captain and crew could afford to have another ship built.