My '62 came with the original radiator, but no shroud. It had tabs on the metal straps that run down the side of the core, to mount the shroud.
The replacement radiator I bought didn't have those tabs.
After doing some research, I discovered that the 1-ton radiator is a little wider, and a little taller, but bolts to the 1/2-ton core support with no problem: the difference in width is made up by the width of the mounting flange on the radiator. It's a bolt-in.
I got it from US Radiator.
This required a 1-ton shroud, which I believe is also the same shroud used for automatic trans-equipped 1/2-tons. (same with the radiator)
I've started fabricating some mounting brackets, but haven't finished them yet. When complete, they should look like they came that way from the factory.
-Brad