Junkers Ju-52 1m 3D model is available on CGTrader for $89. Original author: chipbasschao. Specs: 72879 polys, 51984 verts.
STL (Stereolithography, filesize: 17.4 MB), OBJ (OBJ, filesize: 17.4 MB), 3DS (3D Studio, filesize: 17.4 MB), C4D (Cinema 4D, filesize: 17.4 MB), DAE (Collada, filesize: 17.4 MB), DXF (DXF, filesize: 17.4 MB), FBX (Autodesk FBX, filesize: 17.4 MB)