I agree with Sawyer's answers for all of the above!
6- Yes! Just don't expect great "Gameplay" scores. Sounds like a good way to focus on story/graphics!
7. Wow! This is really pushing the limits of a "game" jam. I'd say as long as there is something controllable, it can count as a game, though a video file you hit "new game" to watch is probably the absolute bare minimum possible.