UAHGHHA. This took a couple days, doing about an hour of attempts each day to finally. Finally get this done!

I felt a little insomnia tonight so I did some recordings of attempts. Beating my head against the wall. I got close a couple times prior. Hell Sub 8 Minutes is likely possible (With Godly RNG)

I reached Rank 4, twice. In about 5 minutes. So. Give it 2 more minutes, one for each rank left. Then MAYBE Sub 7? But that's perfection. So, I think 8 minutes is the limit. If RNG is on your side.