Should be able to print as oriented. I used Prusament PETG Galaxy Black with a 0.4 HF Nozzle and the 0.25mm STRUCTURAL profile for the Core One. Other filaments and settings will probably work just fine.
The author remixed this model.
This remix uses 9 10x2 magnets total instead of the original 6 20x6x2 magnets.
Recommend still using N52 magnets in the 10x2 size for maximum grip to the enclosure.
These magnets will need to be glued in.
The original specification for 4 M3x10 Socket Head Cap Screws is unchanged