3D Vehicle Model Enhancement for Printing

I need an experienced 3D modeler to enhance a vehicle .OBJ file using reference images. The model should be detailed and 3D print-ready.

Requirements:
- Add moderate details: handles, seams, grille, antenna.
- Thicken tires slightly, keeping original scale, and merge with body.
- Deliver a single-object, watertight .STL file (no separate parts).

Ideal skills and experience:
- Proficiency in 3D modeling software (e.g., Blender, Maya).
- Strong attention to detail.
- Experience with 3D print preparation.
- Ability to work from reference images accurately.