Issues I had:
+ The top front glass was pretty shattered, so I wasn't able to pry off the screen at that point. I had to do it from the sides and then sort of rip it off at the point where it was shattered.
+ It was non-trivial to create a little enclosure thing for the microphone to have the right contact with the front glass. I ended up making one out of wall tack (adhesive putty). Maybe it's possible to just keep the original on?
+ I had to manually remove all traces of adhesive from the inside of the back cover before putting on the new adhesive.
+ For both the front and back, I failed on the first attempt to put the adhesive on as straight as I would have liked. I ended up having to put in an extra order and wait for another set of stickers to arrive. I recommend you are very careful, or just order two of each sticker (they're cheap!).
Thanks for the guide!