Happy with my idea, after brainstorming for about 2 hours awake + 5 hours asleep

A classic pick up and deliver at heart. You have a truck and try to fit the oddly-shaped pieces into your cargo space, delivering them to their destinations, getting money for that with which you improve your cargo space and truck speed.

At this point, I can imagine the full game and it being fun. I hope to have fully playable mock-up prototype by hour 12.