Best Ship design system?

[Stormborn]

I have several d20 books with both samples of and rules to design sailing ships. The PCs in my campaign are about ready to buy a ship and I want the players to be able to design it for what they want to do. So, what is the BEST d20 system for designing sailing ships? Rules for cannon would be helpful, but I can adapt if need be. I am looking for replies from people that have actually used the rules to design ships. I know where i can find said rules, i want to know how well they work.

 

[TheAuldGrump]

There are two that I have used in my campaigns - The Seafarer's Handbook by Fantasy Flight andClasic Play: Book of the Sea by Mongoose Publishing. I liked both of them, though I found a pretty fundamental error in Book of the Sea it was easy to fix. (Deckspace equals Length times Width not Length divided by Width...) Book of the Sea is the one I currently use because of the integration between the ship combat system and the mass combat in Book of Dynasties & Strongholds.

The Auld Grump