Take a look at this guide created by @jprspereira
Particularly, part 4, 5 and 6 relate to what you’re asking about here. This will arm you with information about the inner workings of Wanikani, and you can use that to decide on your goals, how often you want to level up, and how big of a load you can handle for your schedule.
I understand your desire to hear some suggestions about how many reviews to do, but all of us can really only tell you about our experience based on our circumstances which will be different from yours! Once you understand how to set a schedule, just try something and see if it works for you! if it’s too fast then you can slow it down or vice versa.
Best of Luck with your Kanji learning!