Hey Baba O', I used Magnolia Street Autobody for my SD. Talk to Dave and tell him Richard with the white '73 sent you so he knows the type of work you're looking for. They're in Ontario, so I don't know if it's too far for you. Also, one of the best things I found about the shop is that even if you have a problem with the work a year later, he'll make it right. I brought my car back at least 5 times for anal issues and he happily took care of me each time. BTW, your link wasn't working so I couldn't check it out, but beware, you'll have to track down all the hard to find parts yourself.
Here are some pics of my car:
http://pontiacsonline.com/73%20SD.htm