Your hood needs the chrome piece added. I'm not sure if you can just modify yours or if you will need a new one. If memory serves me right the front fenders are the same. The big difference is the bumper and I don't know if your subframe has the mounting holes. If it does then all you should need for that is the supports, bumper, and turn signal lights. As for the rest of the grille I think it should just bolt up, but the bumper is going to make the biggest difference.
The fenders will work. You will need to pull the fender extensions and other pieces off around the headlights. You will need the 68 - 72 headlight bezels and eyebrows. You will also have to drill one hole out for the 68 - 72 eyebrows on your 73 fenders, you'll see when you get to that point. No big deal.