I'd be very careful about this one. The models I saw on the site look just like models from the "Model Bank" created by the Spanish company which is now known as De Espona 3D. The company still sells the "bank" for about $500. Viewpoint Datalabs also purchased rights to sell the Model Bank, but they charge far more for it, requiring that you purchase a membership for several hundred dollars even before you buy a model! What I'm saying is that it's unlikely these models were created by this guy and he probably has no right to give them away.

I'd rather stay in my lane than lay in my stain!