This kit will allow you to create a replacement skeleton for the Apple G4 cube that will fit a rockpro64, 2 full size hard drives, a 120mm case fan, DC jack, ethernet panel mount jack, and HDMI panel mount jack. The grounding plate is held in place but pressing the stock heatsink pins further into it. It will prevent the board from shorting out against the case. An LED can be placed in the top plate cylinder, and the stock diffuser slips right in.
A step file is included for anyone to modify how they wish.