A week is with a pretty slick car to start with and that is just sanding time. I started with air and finished by hand. It all depends on what you have to start with. I highly reccomend Hutchins air tools.
If you block and level it right, you'll have upwards of 40 hours in sanding alone. I primed my car 4-5 times before the low spots all went away and the primer laid down right for the final sand before the paint went down.