For the easiest setup, download a "repack" like Codename . These come pre-configured with high-quality rooms (look for "H5" in the name) and premium models (often prefixed with "#").
If you're looking for more information on The Klub 17 or 3D modeling in general, here are some additional resources to check out: the klub 17 6 downloads real models better
All models are supplied in and OBJ formats, with accompanying Substance 3D material files (or equivalent .sbsar packages) for easy tweaking. For the easiest setup, download a "repack" like Codename