When I was with Lennar I learned about consistancy. What is represented in the model homes have to be continued to the buyers home. Orientation is your chance to do corrections. ...Remember it's not your house, it is the builders house until it officially is signed to you.
So on orientation you point that out, let them know the model or other homes are different, and watch the shltstorm as it gets corrected. You would be surprised what can be done in 5 days. You don't have to be combative. Calmness and being resolute will get er done.
Brent.