Ronald, since you have a computer, I would suggest googling "1970 Buick GSX for sale", and usually people will have pictures of their cars; bodies, engines, underneath so you can see the rust or whatever--I use it all the time for reference.
For instance, try this link pasted in your address bar:
http://www.legendarymotorcar.com/legendary.php?obj=inventory&name=1970GSX240