Gather these MDF parts

Slot 4 sides with engraved squares into one side with no engraved details

Slot the previous assembly onto the other side with feet.

Flip the assembly over and glue the bottom plate on

Glue the lid on making sure that the side fins line up with the notches sticking out of the lid

Superglue the acrylic frame onto the top of the lid.  You may wish to sand/file the corners of the acrylic to make a nicer transition to the banding as it wraps around the sides.