I did some soldering last night. So far I have the PS2 controller circuit board, the UBBB32u4, the LCD display, and the boost power supply all soldered together and in the enclosure (which can still close). Still outstanding is the sliding pot, the radios, and the multiplexer. I am starting to get a bit nervous about fitting both radios and multiplexer into the enclosure... I suppose that if I need to, I can just put one radio in. I would like to get both if possible, though... oh well, we will see what happens.
Below are some pictures of the project so far (the front buttons are not installed here, as they were drying from a coat of stain that I just put on).