Bespoke base gerber files

[nbrown6]

Hi All,
I would like to design a bespoke base that allows 24vdc input and the sensing of 2or3 24vdc inputs. Its for an industrial sensing project. Was going to use optocouplers on a board to isolate the 2 systems

Does anyone have the gerber files for a base board. Or maybe something that can be modified to give me what i want?

[ajb2k3]

The PCB berbers should be on the site along with STL's for the case
I also found them here https://github.com/m5stack/M5_Hardware