As Blocker say's the tag info will tell a lot more... If the steering colomn and indicator stalk are original the the car than it is not a Kingswood.... the rear bar is a modification and is off a sedan or wagon.... looking at the pics there is a good chance it is a Sandman and not bad buying at the price.... pity about the sunroof but that can be fixed...

A far better buy than this one currently on Ebay....

http://cgi.ebay.com.au/ws/eBayISAPI....m=170477582997