I will add some tape to the backside of the front panel to be on the safe side.....

I have a technical background, so this should be fine. But why can't the display touch the fronplate ? The upper portion of the VFD is made of glass,, which is almost an ideal isolator.

Which kind of screws are used here ? M3 ?

Due to the gap between the VFD surface and the frontplate of the MX520 I cannot see the upper 2 lines when I look at my PC, which is placed on the floor .

Is it possible to move the VFD closer to the frontplate so that the display can be viewed from this angle ?