Potion Potion
Main Gauche Trident
Crescent Shade Bow
Ice Shield Titan's Helm
Thief's Gloves 400 Gil

That's a complete list of all the items on the Dreadnaught. Since I'm not sure exactly where on the list the 5th item is to you, just find the blank spot from above. For the record you can probably get by without this stuff, though every little helps.