With a 3D-printed screw bracket you can avoid the whole process of fiddling with the original screw posts and epoxy and all that measuring to get it just right:
This part can easily save you a couple hours of time and frustration.
Printed on a Lulzbot Mini with Push Plastic polycarbonate, so it should be nice and strong/durable. It has some flex to it in the middle, but I tested it out by just gluing both sides down and it worked fantastically! Lined up perfectly on the first try and everything. Screws were nice and tight and I could not pull them out. Of course any plastic screw holes will strip if you over-tighten too much, so you still have to be careful.