This may sound like a silly idea for the rigging but the World of Warships game has a very detailed version of the USS Iowa. That is the only idea I have. I have a 1/350 of Mighty Mo and that is what I am going to be using for a rigging guide. I'll post a pic from the game of the Iowa. Its grayed out because I havent unlocked it yet but after I unlock it it will be in color and much easier to see.