That is way high, at least 2x the value of the car. You could get a very nice stock one in a more desirable color for something in the 20's.
Here's an example of a decent blue on blue one:
http://cgi.ebay.com/ebaymotors/Pontiac-G...=item2c6c225a4d
And a nice silver/red one that sold for 25K
http://cgi.ebay.com/ebaymotors/Pontiac-G...=item51a751da51