WOW!! What an excellent guide. One question, what about the programing needed for the joystick to interface with the computer?

The Leo Bodnar BU0836X usb joystick controller he is going to wire it up to has its own programming interface. So basically you just plug it into the computer and it detects it as a usb game controller, similar to store bought equipment. Set the controls via the games input settings and you are good to go.