Add 4 mm to STL Face

I already have the face sculpt as an STL and simply need an experienced 3D modeler to add exactly 4 mm of material across the entire face surface. Once the extra height is in place, the perimeter curves must be re-worked so the new depth blends cleanly with the surrounding geometry and stays watertight for printing.

Please work in whatever software you prefer—Blender, Z-Brush, Fusion 360, or similar—as long as the final file returns to me as a high-quality STL that slices without errors.

Deliverable:
• One updated STL with 4 mm overall height increase, seamless perimeter transitions, and no mesh artefacts.

I will test-print to confirm fit, so accuracy and a clean topology are key. Let me know your turnaround time and any quick questions you have—happy to get started right away.