How much would replacing a transmission celluloid on a 2001 Saturn run?

My 2001 Saturn's transmission celluloid has gone out. It can be reached through the oil pan so it's fairly accessible as transmission repairs go. What's a reasonable price to expect for this repair? I'm just looking for a ballpark so I might know if I'm getting hosed in the estimate when I get it next week.
posted by Issithe on Jul 14, 2012 - 3 answers