Well, it sure took me long enough to get around to doing this, but I finally took BleeckerSt_Girl's advice. I got some very thin zip-ties and attached the mount to the side of the basket. I can still unhook the flashlight to use as a regular flashlight if I need to, which is cool. I went for my first evening ride since I set this up last night, and I think it worked really well. Thanks for the suggestion!