You don't even have to remove the faceplate, I believe.
It's just 2 screws per endcap, and they slide a bit, then pull off. (there's some little plastic hook/latch/tab bits inside)
Also, what I do when taking it apart, I doodled a rough sketch of all the faces of the MPC where there are screws, onto a piece of non-corrugated cardboard. I poked some holes at the locations of all the screws, so I just pop the screws into the right holes as I take it apart. I also put tape over each, so there's no chance of them falling out.
They've actually been out of my mpc for months. I took it apart to replace all the tact switches, and planned on doing the silicone pad fix, but never got around to it or replacing all the screws...
