The Black Max was the model kit i used for the Spyder I used on my wedding cake (yes, you read that right, I made one of the '98 Firebird my Wife drove at the time too, instead of the cheesy figurines). Pretty sure I paid about $50 shipped, but that was 7 years ago now.
Here is a listing of all the 2nd Gen H-Body model kits I've found that were ever produced (I still have to add one more than someone just emailed me about to add to this list). http://monza.homestead.com/models.html