I have printed all the parts on my K2 Plus. Preset: 0.20mm High Quality with 15mm mouse ears and 3 rows of Skirt in front. Material: Creality CR-PETG gray and black. I left the default settings for the material, 240°C nozzle temperature, print bed 70°C.
The author remixed this model.

I had to enlarge the mounting openings for the front, back and side parts, as otherwise they could not be connected. I also added chamfers to the connecting pieces to make assembly easier.