Helder's mintyPi screen + button PCB set includes the Button PCB, the LCD Board, the 2.4" LCD and the ribbon to connect the 2 boards. This is the updated version with integrated battery-monitor circuitry, and a nicer wide-angle IPS screen pre-soldered to the screen PCB.
Updated 3d-printed parts can be found here.
Using these newer parts is mostly the same as the old parts:
An updated guide will be coming soon showing the differences.