I wouldn't pay more then $50 for a decent one, but that is out here where there isn't salt
also '70,'71 are different then '72 but they will bolt up and look the same
(difference is the # of bolts used)
Before I found FABO a I could not find one. Only one I foud the guy wanted $250 for it so I just got a glass one. Here on FABO I have seen them sell for around 50 bucks or so. Put up an ad in the parts wanted section. Some one here will have one for you I am sure.