Summary

It can be printed with the resolution and material of your choice.

due to the small dimensions of some parts, it should be printed with only one wall line count.

Available the 3D model in FreeCAD format so you can adapt the dimensions to the possibilities of your printer.
The FreeCAD model is fully parametric, so you can easily adapt it to your needs.
In the STL models the tolerance for fitting parts is 0.15mm, which works perfectly on my Ender 3.

VERY IMPORTAN NOTE:
If you use the FreeCAD file to modify/export your own STL, do not do it from the export option of the file menu, because the default parameters it uses are not really good.
Use the "Mesh Desing" workbench and from the "Mesh" menu use the "Create mesh from shape" option.
From that panel export in "Standard" mode with a "Surface deviation" of 10um and an "Angular deviation" value of 10º. Leave the rest of the options unchecked.
Use this mesh for STL export.
Of course you can try other options, but with those values you will get a very good quality mesh to reproduce all the details and with very fast conversion times.

0.28 layer height, 1 walls line count, 2 bottom layers and 2 top layer, 20% infill produce very good results.

PETG results in a more flexible part but PLA also performs well.

A very useful clip for your filament spools
https://www.thingiverse.com/thing:5988874