I will try to make sense of what I want to do. I have a set of 71 seats that were redone in my cars past with a greyish blue material. They are really pretty nice and I would like to just mothball them for something in the future. I have a set of 70 seats that need to be redone and I am wanting to put 71 deluxe foams and covers on them. I know there was a slight difference in the hinge area but am not too sure what it is. My other interior is at my dads which makes it hard to compare. Anything wrong with doing what I am thinking of? Here are pics of the interior pieces I want to put up.