KC-135 R Stratotanker 3D model is available on CGTrader for $55. Original author: citizensnip. Specs: 57133 polys, 58331 verts.
MAX (Autodesk 3ds Max, filesize: 25.9 MB), BLEND (Blender, filesize: 35 MB), OBJ (OBJ, filesize: 7.73 MB), FBX (Autodesk FBX, filesize: 15.4 MB), GLTF (glTF, filesize: 116 MB), TEXTURES (Textures, filesize: 79.1 MB), PNG (PNG, filesize: 79.1 MB), JPG (JPG, filesize: 79.1 MB)