This is a support made for Gaomon 860T drawing pad but could be easily adapted for other tablets. It has a safe place to put the pen with the tip down (the tip won't touch the plastic), it has a compartment with lid for the spare tips, it has a slit in front of the support for a protective screen part, and it has some feet to prevent it to tip over.
Avoid using XY / horizontal compensation because it would made the hinge too fragile.
Detach the lid
Try using a precision knife on the compartment lid hinge to detach it. Don't force too much or it will break.
I measured the tablet and used openscad to model it.