Done. No damage to the screen itself, couple of scratches of the bezel (ill attempt at opening the top with a stanley), small cracks at a few corners of the back case. Most troublesome part was the first step, but I finally got an opening after slipping a nail in the middle of the sides (either side is easy). Repair was straightforward from then on.
Thanks ifixit. Your tools and your guide really helped this beginner. Now I don’t have to drop 500 on a tablet.
Opened the case for the first time. It took me a while to find any gaps, but I found that the easy way to begin was using your fingernail to get into the sides. The middle left and middle right seemed a lot easier to…slip a nail in compared to the rest of the case, especially the corners and the top and bottom. With a small opening on both sides I used the opening tool to increase the gaps while using a couple of guitar picks to prop up the device against the back case. With most of the sides exposed, I worked on the bottom (create opening, leave a guitar pick to keep that part open, use the opening tool to get the rest out), and the opening was pretty much complete.
So far only the corners of the back case showed small cracks and my screen was pretty much unscathed.