Made according to manufacturer's photographs and dimensions
http://www.nacolighting.net/product/62.html 

Dimensions:
height 181.5 cm (71.4 in)
width 160 cm (62.9 in)
depth 25.5 cm (10 in)

There are 3 copies of the model saved in the scene, each with its own customized material assigned, there are 3 colors - black, gold and bronze.

The model in the scene has a Turbosmooth modifier set to Render Iterations=2, which is applied only during rendering.
In the obj file, the model is saved with Turbosmooth Iterations=1 applied.

All objects have normal names.
All materials have convenient names.

Model weight without Turbosmooth:
4046 polygons
4108 vertices

Those who work in a V-Ray version lower than 3.1, be careful, in the materials in the BRDF section there is Microfaset GTR (GGX), if your version is older than 3.1, then the BRDF field will be empty. Choose Blinn, Phong or Ward - whichever is preferable for you.

For Corona render, it is recommended to install version no lower than 1.5, since the glossiness of the materials is adjusted taking into account PBR.