I already have a complete 2-D drawing of a building and now need it rebuilt as a 3-D file suitable for mould fabrication. Only the external massing and main structural outlines are required—no interior rooms, textures, or ornamental extras. Dimension: 6 Inch height Please work directly from the plan I’ll provide, keep the geometry clean and watertight, and deliver the finished model in OBJ format. A quick viewport screenshot or shaded render alongside the file will help me verify that all faces and edges imported correctly.