I might run it first before I would do anything. Kinda hard to believe that while shipping a crank got bent. If they bend that easy we would have more problems. I have almost a dozen 20cc up to 60cc twin and the only crank I ever bent was on a g38 that went nose in from a good height. And I fly plenty of warbirds that have had nose overs with no bent cranks. Just my 2 cents.