The engine casing is build like a drawer, the rear plate will be screwed to the engine module.

Assembly of the backplate

It needs some triming to fit in.

It will work with mini-screw

I use a resin plate, a part of the kit that I did not use (and replaced by the medium), to make the bottom of the drawer.

The light box is made of the above plate Honeycomb are slid inside, behind frosted transparent sheets.

The box is closed with the help of PVC profiles L and screwing everything

Missing is the lighting (which will be done later)