Looks like I possibly found the right truck in a search. http://www.cartorque.co.za/0201.htm
Didn't take long. I was guessing that color would have a lilac pearl in it. So a search for lilac 48 chevy pickup and bingo brought up this site as one of the first search results. Says owner is ray exton and the truck was at nats held in south africa. Did a further work, and this site gives more information. http://www.sahotrods.com/carsonline.php?car=40
Wonder if detective work pays any better then auto body, lol, but hey you got some for free. Once in a while long shots pan out, and you have a start anyways.