Additional parts:
4x M2.5 10mm screw
4x M2.5 nut
4x M3 20mm screw
4x M3 nut
these sizes were chosen because they are very likely to be found in your average hobby store, the case could be smaller, however, that would require 6-8mm M2.5 screws which are more difficult to find
The author marked this model as their own original creation.