Grumman G-164 AgCat V15 Sport (Polygon mesh 3D model) is available on CGTrader for $89. Original author: Dreamscape. Specs: 48690 polys, 29629 verts.
STL (Stereolithography, filesize: 930 KB), OBJ (OBJ, filesize: 1.75 MB), MAX (Autodesk 3ds Max, filesize: 180 KB), LWO (Lightwave, filesize: 584 KB), DXF (DXF, filesize: 918 KB), DWG (AutoCAD, filesize: 1.3 MB), OTHER (Other, filesize: 2.64 MB), 3DM (Rhinoceros 3D, filesize: 641 KB), W3D (Shockwave 3D, filesize: 541 KB), 3DS (3D Studio, filesize: 296 KB), TEXTURES (Textures, filesize: 2.54 MB), SKP (Sketchup, filesize: 2.22 MB)