Somebody just offered me a great deal on a 83 280zx, but I noticed the front underbody jacking points are crushed and there appears to be some rust. The Hayne's manual says you should use a wooden block between the jack and the car when using this jack point, but evidently somebody did not! Anybody have any experience on this type of damage and the best way to repair. I can cut out the rusted parts and weld on repair panels, but should I do more? Thanks in advance for any advice.