I have an order placed for a regular S85, but now am toying with the idea of the P85. I want the power of the P85, but don't want the Red Calipers, Spoiler or Headliner. I know they can be removed from the build, but when unchecking the box, the price doesn't change. Has anyone had any success taking these items off the P85 and having Tesla credit the price from the total? Thank you!