Print “Button Pusher” and the “Insert Rods” with %100 infill and ABS or PETG. The covers only can be printed with PLA as they are decorative parts. Use the original screws again for the “Rods”. You will need 7ea M3x16 screw and nuts to fasten the parts together. Then glue the decorative covers over.

Rotate&Print the parts on with the most printable face. No supports needed. The screw holes are closed with a thin layer to not to use supports.

STL and 3MF files included.

I hope it will help to your suitcase. The STEP files also added for redesign flexibility.