Ship Design
OCC: Scott, I have researched the ship more and based upon it's dimensions it is from bow to stern 190 feet from bow to stern....and 60 feet wide. The forecastle at it's point is 4 feet wide tapering from the ends of the 4 feet to 60 feet over a run of 40 feet before it reaches the main deck area which then runs 100 feetx 60 feet wide before reaching the stern section which measures anohter 50 feet in length with the end stern most portion measuirng 40 feet in width....HOPE this made sense.
In regards to cargo capicty the cargo deck will hold up to 500 tons of cargo. That means with the extra cargo decks.....the ship can carry 4500 tons of cargo or in english 9,000,000 pounds of cargo......
Ships Stastics
AC: 14 (basic armour class for this size of ship
Profession Sailor +4
Speed - Wind x 25 feet
Section Hitpoints 180 - based on two inches of steel outer hull. Inner Hull is 90 points per 10x10 section.
Rigging Hitpoints 300
Passanger/Room space to be used 1500 tons+ 2000 tons of extra dimensional space
1 ton = 2 in average quarters, 1 ton + 1 in fancy quarters, 2 tons = 1 in luxury quarters.
Masterwork Controls +2 to circumstance bonus (4800gp)
34 Ballista (14 each side, 4 stern 2, bow) on the Gun Decks
14 Swivel Guns (7 per side) on the main deck as anti boarding defense.
2 Magical Warlock Guns on turrets (1 stern, 1 bow)
Rigging Crew: 30 men
Ballista Crews: 68 men
Swivel Gun Cresw : 14
Marines: 250
Selp Proplusion deivce: 60 feet
More to come lol getting sleepy here. Just blame me watching the adventrues of Horatio Hornbolower for this

....but really she will truly be a clossal ship....her cargo capicty is way more than i expected but in reality it will work out....given the nature of your campaing and my idea to eventual sale her on other planes......She will have a rather large draft of 20 feet which will mean there will have to be a lot of small boats availabe for just in case..... the self proplusion is more of a steady source of power in case their is not wind or the have the need for extra power to steer clear of reefs etc.....with a heavy wind thought the ship under sale will be capable of close to 90 feet......this is incrediable......she will be a very lively and fast ship with hidden power for those rare occasions...