I thought there was something they missed. Mine finally seperated with a loud snap.Thought I broke something but it looks ok. These parts are pretty tough.

These screws are insanely tight for some reason. Only a good sharp #0 will work, otherwise you could notch the side and tap it loose CCW with a punch.

Plastic feet are actually the feet bezels. They snap out

There are 2 under the rear foot plastic covers that are not mentioned to remove, they snap out