I need a bed for my wife's dually build. It's 1981 single cab. I think the single cab and crews have the same bed though, don't they? Looking for something rust free (or very minimal) since the one I have is completely rusted out. I'm located in Houston, TX, but I'd be willing to drive somewhere within a few hours of here to get it. I think shipping one would be cost prohibitive, although I do have the ability to unload freight with a forklift. Thanks.