Hi there,
This is Bogdan from Romania.
I'm a mechanical engineer - specialized in the industrial robotic field, 3D designer and modeler (from time to time and some projects I could make the functional prototype too).
I'm doing product design, industrial design, reverse engineering, ideation, etc.
I have over 15 years experience working on various systems/devices across multiple industries, from concept to launch.
1 - in order to be flameproof, besides the materials used, the assembly need to have certain tolerances which make possible usage despite the dilatation
2 - if the label you are talking about is 3d modeled, it is ok, but i don't make graphic design
3 - the complexity shown in the pdf is fair, but i will have to see the real drawings/sketches/dimension
4 - the output files will be native inventor 2017 (ipt/iam), regular cad files (step214, iges, sat, stl) and manufacturing drawings dxf/dwg/pdf, plus 3d pdf for easier visualization
Regards
Bogdan