I made this sign with real measurements, each part could be separate from the main body, so you can choose what you need easily.there are .fbx and .glb files with setted material for using them in any platform. let me know if you need more detail, it could be ready in a few hours.
STL (Stereolithography, filesize: 1.83 MB), OBJ (OBJ, filesize: 3.32 MB), 3DS (3D Studio, filesize: 2.25 MB), 3DM (Rhinoceros 3D, filesize: 1.49 MB), PLY (Ply, filesize: 2.76 MB), FBX (Autodesk FBX, filesize: 5.38 MB), STP (STEP, filesize: 751 KB), GLTF (glTF, filesize: 4.17 MB)