Jim, I used one of the fiberglass repair kits you can get from the auto parts places. It contains everything you need to do the repair except the sandpaper. If you want a really slick finish on the hood, you need to repair the crack first, then put several coats of sandable primer. After it dries, sand with 220 to locate the low and high places, then if needed, more primer and sand with 600 or 800 wet sand paper. If you're happy with the feel of the hood after this, put on your top coat of choice. If it still isn't smooth enough to your liking, shoot more primer and sand until you're satisfied. Most guys that are going to use their machines, don't worry much about trying to cover the fiberglass strands in the hood. Then the ones of us who like show tractors put about as much effort in the hood as the rest of the machine. Hope this helps, just take your time and any mistakes can be corrected, just takes time !!