[1972convss454]

How hard would it be to find an original 69 early 70 big block hockey stick style drivers side SMOG tube in descent condition. Also if found what is the going price? Only need the drivers side. Do not need the pair. Not looking for repo.
I know this pushing the line on a "want ad" but I am really trying to weigh my options. I have a line on the passenger side only and would need the drivers side. If this needs to be moved it's not a problem.
Thanks Guys in Advance for the help and advice.