Use the files from Naheulbeurk, except Insert-Bill_Red_PLA_MK3S_114g_11h21m.3mf
I did use PETG, because i had some nice colors:
The author remixed this model.
look at the original remix by Naheulbeurk and use the files there to print out. The only thing i did was to redo the “red insert” in tinkercad because i had issues with my slicer and needed a STL file.