I didn't like the fact that the circuit board for the keypad & LCD was exposed. This is an extruded cover that fits over the circuit board and plugs the chamfered hole in the bottom of the build chamber. No new hardware is necessary to install this cover.

This is a larger build so I used:

1. A raft so the corners didn't lift up during the build process.
2. A build support with 1mm gap between the support and the object. I built this using ABS plastic filament, extruded at 250C and the build platform at 110C.

The screws that hold the circuit board are #4-40 thread and are made from plastic.

To install, remove the two screws on the left end of the LCD display and the two screws at the top of the rubber switch cover. I tapped the 4 holes in the extruded cover so I didn't stress the plastic screws that hold everyting together. Position the cover over the circuit board and place the wires coming down the front-right corner through the notch in the end of the cover. Install the 4 screws.

10/15/12 Update: Try using hairspray (Suave Extreme Hold 10 per MacGyver's recommendation) instead of the Kapton tape to better secure the build to the platform.