Schweser materials question

I was wondering since the June 08 Schweser books are the same as the ones for December, if it’s possible to buy the used books and then individually buy the remaining online components directly from Schweser? If I could find a good deal on used 08 books, it seems as though the remaining parts of the “essential” package would be the online qbank, full detailed explanation for the practice exams, and the “instructor link”. Are those available to buy individually or are they part of the package, and therefore it’s beneficial and likely necessary to buy the “essential” package from the site (I’ve read the qbank is very important)? Thank you very much!

You can buy all the components individually if you want… they’re all priced on the Schweser website.