"... rust free car..."
Seriously?
This is my phat phinger in this picture. I suggesting to the owner that we remove the rockers to show the good with the bad. I took the undercarriage shots and have driven the car. This car needs a complete repaint and a full interior which gives you license to paint it whatever color you want with whatever interior you want. My car was baikal with a black interior I painted it nachtblau with an ox blood interior and wood of my choice. With a car like this I would do the same.