I work in a metal specialist company (Di Candilo Steel City Perth). Please feel free to search us up of legit check. wherein we specialize in cutting steel few examples of our services are Laser/Plasma cutting, Profile, bandsaw and Beamline. I'm the CNC programmer/Draftsman in the company which allows me to have expert knowledge in the types/thickness of metal around (Mild Steel, Stainless Steel, Aluminum, BIS80, Copper, Zinc, Galvanized steel, GR250, GR350). I also have the corresponding software to convert any file into a CNC machine ready file (DXF, DWG, PRONEST, LANTEK).
In addition, I have an extensive and professional background in regards of AutoCAD and its 2D and 3D applications.
I saw some familiarity to your example drawing and I believe I can make it work!