3 locks in the vault room sounds great. We also need a place to store the crown of Air on the ship.
Superior locks (open lock DC 40) are 150 gc each.
Lead lining (Complete Scoundrel) would be helpful in the vault to prevent detection spells. 10 gc. No definition of item size.
How many Captains laterns do we need?
I think we decided that we need 3 latern's of revealing.
One Captain's Lantern will function for the entire ship, no limit on number of crew.
A Lantern of Revealing effects a radius of 25 ft. Would we want to constantly cover the entire deck (we would need multiple), or just bring it out as needed (just one would work)?
Hero how much is the bulkhead that grants a short fly distance?
Golden Shedu: This living figurehead is carved into a likeness of the forequarters of a shedu, a creature with the head of a bearded man and the body of a winged bull (see page 153 of Fiend Folio for more on this being). It is crafted of mahogany and overlaid with gold leaf. When animated, this living figurehead grants its ship a fly speed of 60 feet with poor maneuverability. In addition, the golden shedu allows its ship and crew to shift briefly from the Material Plane to the Ethereal Plane as the etherealness spell. The animated figurehead has a Charisma score of 16 but is otherwise treated as a Large animated object. Its flight ability can be used twice per week for up to 1 hour at a time. It can transport the ship to the Ethereal Plane for up to 10 minutes each week; the duration of the etherealness effect need not be consecutive periods.
Strong transmutation; CL 17th; Craft Wondrous Item, etherealness, fly; Price 100,000 gp; Weight 350 lb.