He will be on a navy frigate or galleon, up to the ones in the war class. It's just luck of the draw when you find him.
Also, I found that people who started the quest over F.D. weekend could still complete the quest for the 500 gold and the double xp. When you get your double xp, it will carry over from each login until you've completed your three hour time limit on it.
Happy hunting!
