That is unfortunately not possible on Wanikani. For every level you first get half of the available lessons. Then the SRS will force you to wait every time before you can repeat your review.
Apprentice 1->2 = 4 hours
Apprentice 2->3 = 8 hours
Apprentice 3->4 = 23 hours
Apprentice 4->Guru 1 = 47 hours
This means that you can get half of your lessons done in 3 days and 10 hours. After getting guru 1 on certain items, you get the other half of the lessons that are based on those radicals and kanji from the previous half.
So in total every level takes at least 6 days and 20 hours if you do everything perfectly, which results in exactly 205 days. But that means almost perfect reviews, which I guarantee you is impossible. I’d like to refer you to @jprspereira 's masterpost. He came pretty close.