Summary

can be printed using NO support, just put front down to bed
0.1mm layer height
PLA

I recommend you try this file first:
Fluke_343A_Display_Frame_wider.stl
i feel this one fit the look quite close

here you can see why i needed this design
please comment the video or post a make, if you used this STL
https://youtu.be/EDoJI2HOnDg