I saw Richs window and when they did it,The size was a bit off.They had to do some modding to it to get it to fit right.I would make sure the measurments are exact.
Everything was good until a certain point and the size was a bit off.
I would have thought that all the windows were cut the same size but apparently they are not.
I do have to say though that it does look good finished.They did a great job on it.