Bill, here are picks of my special crushbent piping....custom made by yours truly. If possible, seems like all it needs is a pipe expander to round it out....I know muffler shops have one, not sure if you do. Anyways, check it out!
FYI, if Bill can't do it or doesn't have the tool, AutoZone rents a tailpipe expander tool that fits in the interior of a pipe and expands as you tighten a threaded rod that passes through it. Use an impact on it and it will round that right out in no time. Free rental (with credit card deposit).