I did the rear seat back and bottom myself. It was my first time ever, and I'm real happy with how they came out. The front buckets I had a seat guy do. Mine is a 73 Challenger, and for 72-74 E bodies, the seat foams are not reproduced. I needed the foam in mine rebuilt as part of the installation, which is why I farmed that part out. If your foams are all in good shape, you should not have too much trouble. You just need some patience, especially on the buckets.