Check out Cartoon Sea Plane - Seaplane Low-poly 3D model on CGTrader for $8.8. High-quality mesh by Ocstard: 2800 polys, 2993 vertices.
BLEND (Blender, filesize: 200 KB), OBJ (OBJ, filesize: 1.07 MB), FBX (Autodesk FBX, filesize: 1.67 MB), DAE (Collada, filesize: 1.21 MB)