Photo-Realistic 3D Prop
Hard Surface High Poly SubDiv
Hand draw orthographic views based on photographic reference. Translate into vectors and import into Maya as templates. Model first reusable volumes, copy them as a module and build up bridges between geometry. Open UVW, export as obj and import into ZBrush. Add subdivision levels and sculpt relief and silhouette. Export as normal and displacement maps from lowest subdivision level, import into Maya and plug into shader.