You're going to be out of luck if they want the manufacture date other than the model year, that's not recorded on the titles as far as I know. Closest you're gong to get is maybe to look for date codes from the engine serial number and/or casting numbers, provided that it is original to the truck. GVW shouldn't be an issue, as that will be on the title.
Same for a frame swap, that generally isn't going to be noted on the title either, nor will the year of the engine if it has been swapped. The titles generally go off whatever year the body is supposed to be.
