Well the supply ship is suppose to be like the boat that brought you to the area. But maybe a dock for the builder to build that adds some of the functionality discussed in this thread would be in order eventually.
we could add a "Build Building" button and GUI to the chest that implements whatever functionality is required of the supply ship, and builds the dock.. (assuming you have placed it within the townhall boundary of course..)
again though.. nice idea that will go on the list, but don't expect it too soon
Implimenting the supply ship further would definitely add a nice dynamic element to the game. Taking risks with your resources in the hopes of making profitable trades is definitely an avenue I'd explore, because I'm such a level-headed ruler Having new citizens, etc. spawn in from the dock would also add a nice touch of flavor to the whole experience. As it stands, I build a dock next to my supply crate within the first couple of days, anyway xD