Although the "paperwork" is quite important for the success of a project, the chance that your job offer will be heard is way bigger if you have something to show.
If you're a modeler show some models.
If you're an artist show some concept sketches.

Best thing would be if you were a scripter and could already present a little gameplay demo/video which doesnt need great graphics or models, just the core gameplay stuff.
If you have that finished it will be easy to implement better graphics, the front-end so to speak.

Good luck with your project!