I just took step 2 today!!! yippee.....i think you will do well with 8 weeks. I didnt do usmle world, but the kaplan qbank was right on. so many questions were right out of kaplan.
another thing that is helpful, there is a list of photos at the end of the crush book. look those over...they are really helpful.
all i basically did was read step2, crush and did all of qbank.
there were tons of questions about jaundice, tinnitius with hearing loss, and women with hirsuitism.
overall though, i was so impressed with qbank and how many questions i had already seen some version of in qbank.
good luck