Looking for Convention Center Style 3D Model (CLOSED) (CLOSED)

I'm wondering if anyone has any leads on a 3D model. I'm looking for an open-space convention center type of model to use for an auto show. I have seen plenty of arena style models, but I don't want all of the seating like a sports venue. 
I'm looking for something kind of like this:


Any help would be greatly appreciated. 

What rendered do you intend using?

Ah yeah, I guess I could have mentioned that. Daz Studio Iray, but I can texture it myself as long as it has decent material zones. I just need a good OBJ. Thanks!

something like this? it says warehouse but looks more like your pics?
https://www.renderhub.com/wirecase3d/warehouse-building-interior-and-exterior