Looks lovely. Does the pipe split at that black line just in front?

If so, you could possibly push most of the dent out with a metal bar that has been filed to a dull edge on the end. I had a pipe that got T-boned on the first day and managed to push it out. Granted, once you disturb the shape of the pipe it doesnt ever work as well as it should. But a slight dent wont be real noticeable.