I have a 101,000-sq-ft parcel in Grenada that needs a highly accurate digital terrain representation for upcoming construction planning. I am aiming for true high-precision output, so I am open to whichever mix of satellite DEM, LiDAR, or other high-resolution elevation datasets will give the best accuracy across the entire site. Deliverables I need from you • A georeferenced Digital Terrain Model (DTM) or Digital Surface Model (DSM) that is ready for CAD, Civil 3D, or GIS import. • Contour lines and key spot elevations suitable for grading design. • A brief workflow summary noting the data sources you selected, the processing steps, and the achievable vertical and horizontal accuracy. Acceptance criteria • Coverage must match the full site boundary. • Final raster or mesh resolution clearly stated and verified. • All files supplied in common formats (GeoTIFF, LAS/LAZ, or equivalent) with correct coordinate reference information. When you respond, let me know the resolution you can confidently deliver, the software stack you plan to use—QGIS, ArcGIS, Global Mapper, LAStools, PDAL, or similar—and your estimated turnaround time. If premium data tiles carry licensing fees, please outline those costs up front so there are no surprises.