My second box on here. Pretty cool stuff!
I had gotten stuck after foothold for several hours but it seemed that I overlooked some files I found some time earlier so I looked at some hints on here and checked again and voila.
I actually tried the bus thing while I was trying to get user 1, so going back to that, it just took me 2-3 minutes to get root after user 2. And thankfully I didn’t spend a lot of time to get user 2. That was very unexpected indeed.
If anyone is stuck, do what I did and read every comment from page 1. Really good hints in here.