That’s a beauty. Ours was a 1973 Buick Estate, all 6000 pounds worth at 9 mpg city.
I have a ‘72 Buick Estate with every single option including the hood mounted head light dimmer. The one thing it does not have that the rest of my stuff has is the 3rd seat. I bought it from the original owner who had a string of Laundromats and needed the extra room back there for the change he had to pick up every day. He was a funny guy.
Here it is from the Station Wagon convention a couple years ago. It is on my friend Steve’s site so I don’t know if I can post it. The Roof top carrier is official GM stuff.
http://rides.webshots.com/photo/1079238266028694718vrNDap