I added a springer front end to my bike, but the finish does not match the rest of the bike at all. I don't want to paint it, but I would consider patina-ing-izing-ification. I'd like to make it match my chainguard. The chainguard is basically green too, but much more faded and rusted. Any advice to make the finish of my springer look much more like the finish of my chainguard? Thanks!!!