I just bought AUD Ninja Book and I think the chapters do go together with Ninja MCQ. There are six main sections and two smaller sections (Audit IT & International), which I think are both blended into one of the main six sections. Ninja MCQ is in six sections as well that seem to tie in with the Ninja Book and Ninja Notes.
So far I'm liking the Ninja Book and the application question it has throughout each chapter. It's helping me prep for the type of questions I will see in Ninja MCQ.
I recently updated the study materials I use in my signature. When I passed REG I had the 10 point combo, but Ninja MCQ wasn't released by Jeff yet. I used the Wiley Test Bank for MCQ's. I basically re-wrote Ninja Notes religiously and listened to the Ninja Audio in my car ALL the time. Also re-wrote flashcards until I was able to rate it at a 5 in Brainscape app. Any detailed topics I needed to get into I read my Wiley Study Guide textbook. As for SIMS, I actually rolled the dice with them and got super lucky. I felt my SIMS were pretty easy with a few difficult ones in there. I did about 3 or 4 SIMS the night before my exam to get a feel for it. Don't underestimate biz law, that's all I can say. I also took a huge interest in tax because I was eager to learn more, I think that helped a lot. I studied for about 8 weeks btw. Best of luck! If you didn't use the 10 point combo before it WILL for sure help you this time around.