Check out AH 64D Helicopter -2 Low-poly 3D model on CGTrader for $35. High-quality Polygon mesh mesh by HighRock: 14648 polys, 8660 vertices. Textured.
STL (Stereolithography, filesize: 2.96 MB), OBJ (OBJ, filesize: 2.96 MB), MAX (Autodesk 3ds Max, filesize: 2.96 MB), 3DS (3D Studio, filesize: 2.96 MB), DXF (DXF, filesize: 2.96 MB), OTHER (Other, filesize: 5.92 MB)