I was parked at a local restaurant as the wife and I enjoyed dinner and when I came outside, my bike was laying on its side. After some cussing I righted the bike and assessed the damage. The only thing I could find was my front fender has a crack about halfway through. I was wondering what some of my fellow riders used to fix a crack. I want to retain as much of the original color as possible, so I was wondering if I ground out the crack with a Dremel tool, could I use JB Weld or something similar to fill it in? My 73 R75/5 has the original paint and has a certain "patina" that I want to retain. Thanks in advance!