For this model you will need an assorted set of M3 bolts, nuts and a few washers (or you can print spacers but I didn't). The pics are quite dusty but that's just proof that it works.
Printed:
1x Grill_Frame_All
2x Mesh_Grips_Sides
1x Mesh_Grips_Top
The frame is all you will need if you want to customize your own front panel. You will need the mesh grips if you would like to use a fabric mesh filter on the front of your case.
The front panel is quite large but all the files are made of a few parts that fit together. You can use 'right click' > 'split' > 'split to objects' in prusaslicer to break the file into it's parts to arrange them.
If you are wondering about the art I have silhouetting the fans, it's called ‘The Great Wave of Kanagawa’ and the model isn't finished yet, this is just the model for the frame.
Edit: looks like I missed some holes on the main frame but a hot nail or drill will fix that.
The author hasn't provided the model origin yet.