The inside track you have a pic of looks to be the drivers inner. Its higher at the front. At least that is how I assembled mine recently. They are still sitting in the basement. Remember the driver seat moves back when you press the outer lever and the passenger seat moves forward.
I don’t believe this is correct. With the driver seat or passenger seat is all they way back with the spring stretch out. When you release the handle the seat will move forward. The inner track has the opposite taper than the outer.