http://www.ltsportcover.com/index.html
That is what he had, but as I said, his had a keyhole on the top to lock/open with. Seems the new style does not have that. Anyways, that is the website he pointed me to when I called and inquired about the brand.
I didn't even think about if they made one for square bodies, I just know it was the coolest cover I'd ever seen. He had a late model nissan truck though.