Best Possible Paper Combinations (F4-F9)

Good day all,
Please, I seek your advice on the best way to combine papers from F4 to F9.
I will be doing self-study and I will be writing in pairs or if you suggest otherwise, kindly advice.

Secondly, Can I just focus on all materials on OT (video lectures, notes and guides) to prepare for the exams without using any other materials apart from revision kits by BPP/KAPLAN?

Thank you.