Check out Supermarine Spitfire MK XVIII Aircraft Low-poly 3D model on CGTrader for $39. High-quality mesh by HighRock: 5060 polys, 2094 vertices. Textured, UV Mapped.
STL (Stereolithography, filesize: 1.73 MB), OBJ (OBJ, filesize: 1.73 MB), MAX (Autodesk 3ds Max, filesize: 1.73 MB), 3DS (3D Studio, filesize: 1.73 MB), DXF (DXF, filesize: 1.73 MB), OTHER (Other, filesize: 1.73 MB), FBX (Autodesk FBX, filesize: 1.08 MB)