If you need just the pump, just buy one from wbody or one of the other gp stores...Or maybe another member will have a used one.
If you need the whole housing then go to ebay. It was the cheapest I found. I got the whole housing for my 97 off of ebay for $160 shipped. Been working great for 6 months now, and my gas gauge finally reads the correct amount when under a 1/2 a tank!