Does anyone know how to make a stuffed spaceship?

My friend really likes the old scifi show Firefly (there's a movie based off of it called Serenity) and I want to make him a stuffed Serenity (the spaceship is called Serenity) for Christmas. I know it will probably take a while so that's why I want to start it now. Does anyone have any advice for making my own pattern to make it? If someone has or has found a free Serenity spaceship pattern, that would be great! (Sprinkle a lot of dry humor on that last comment) But really, any hints?