User blog comment:NickyLinnea/Fortune Hunter upgrade on a War Frigate/@comment-4487065-20111110204428/@comment-2155069-20111110210650

I think it cost 288k gold to get Fortune Hunter. 500 pine, 375 oak, 900 iron. The black sails cost 10k. The rigging upgrade cost over 40k...250 steel, 125 canvas, 125 iron, and 250 silk.
 * Total cost around 340,000 gold