Now the only thing left to do was attach the last few components, and mount the fingers to the base of the glove via the extension springs and micro-bolts. First, I placed the button-caps into the housings, on top of the tactile switches. I used a fast-setting epoxy called "Zap-a-gap" to secure the sheet metal covers on top of the housings. Before glueing the metal covers in place, I scratched them up a bit with an exacto blade, to help the epoxy adhere to the metal.
Here's a video demonstrating the button assemblies of each finger segment:
To attach the fingers to the hand plates via the tiny extensions springs, I used some dental floss to pull the tiny springs through the mounting holes on the 3D-printed pieces: