i'm agreed with panda here.
there is always a feeling that you'll do it better (and you probably will) when you're doing a creative works if you rework or scrap it, but then it will never end. you'll always find a spot you want to add more and more or improve it better.
considered the only 3 days deadline left, it is much better to finished the last 7 pages then rework it page by page. if you still want to do that.
try to rework all the 17 pages from such a short time is foolish imo