High-Accuracy 3D Printed Topographical Map of Gettysburg Battlefield (1863)

I am seeking a skilled professional to create a high-accuracy 3D topographical map of the Gettysburg Battlefield (1863) in Pennsylvania, USA. The task involves obtaining LiDAR data from the USGS or a similar repository and converting it into STL files that align with original survey maps. Deliverables include two versions: one with existing buildings and trees, and another with just the underlying terrain. Each STL file should be under 2GB in size for compatibility purposes. Accuracy is critical as this is intended for historical purposes. I will provide the exact area of land and initial samples for reference.