Don't waste your time if you're hoping to get it road worthy. I see you're in the same miserable state that I am. Illinois is the worst. If it's already branded as "junk"or "salvage" stick a fork in it. Though they had the vin on the dash, if you have a dash out of something that doesn't have aa junk title that's a possibility.
In my case I have the original dash and the original frame that match the title.

The cabs on these trucks/ramchargers are actually very complex strucutres. There are 3-5 overlapping panels spot welded together depending on what seam you are on. If you can do, the absolute easiest way to replace the roof is to sut the pillar and weld a whoel new roof on. Just take lots of careful measurements.

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Casually looking for a Clifford hyperpak intake for cheap.

The honest truth is if you consider the cost and the huge amount of time to separate all the panels, get new panels and separate them, re-weld them, patch them, then body and paint. You are almost better off to go south and get a complete cab or a whole truck and install the whole cab.

The professional that does all our body work here just finished up Andrew Shanks truck last week and he said it was an absolute nightmare. He told me he would highly consider another cab as a better alternative. They can be repaired and now that he has seen how it was put together from the factory it would be easier. But it ain't easy or cheap. Apparently all the pieces were put together completely bare.

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2 Mopars come with Spark plug tubes. One is a world class, racing machine. The other is a 426 CI. boat anchor!

12.70 @ 104.6

Which is my plan. I have another roof already, tip side is great, but the drip rail underneath isn't. Since the top side is so solid I'm gonna fill the bottom in while I can still flip it over easily.before I weld it onto the rest of the cab