To help kick off your studying for Exam 7, I put together a detailed reading order of the syllabus. Hopefully, this will give you a better idea of what you're in for and what to expect from the different papers.
In terms of the order, what you see in the CAS Syllabus is a pretty good starting point. I made a few switches in the order so that you'll see some of the more approachable papers of a section earlier and to make sure that the order of the concepts makes sense.
I also added some additional details to give you an idea of the difficulty of each of the papers and whether you should expect more calculation-type problems or essay-type problems on the actual exam.