I don't read many books and never read the one you specified, but I can teach you everything you need to know about Drupal 6 from a designer's point of view. I have some custom modules I can share, as well, which help to accomplish specific tasks, like hiding certain system pages from prying eyes. (After all, you don't want people to know what you use.)
5 days is the minimum amount of time it would take to teach you the needed knowledge. I suspect you may need a few extra days. This is an estimate on the assumption that we are online together 4 hours per day. 4 hours a day for 5 days, basically.
I have both technical and design knowledge. I can teach multiple methods to complete different tasks. In Drupal 6, there is never just one way to do things. You have freedom.