First I'd like to show what I did with my case
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drill the holes slowly but I'm happy how It came out, although I wrecked my case the first time around the lip for my screen looks ok...
So next the inside of my case, I've haven't done anything like gluing the screen but I have added by 3d printed button wells with some hot glue Now It's time for the back of the case Here instead of going with the tactile buttons some people use and put in the screw posts I decided to you use buttons similar to those that rodocop uses
Finally here is the glue job It's nothing special but it's done the job for me and I've stress tested it and they're not going anywhere