Of course it would be a 2023 frame and drivetrain, just with the OBS on top. With all the new bells and whistles grafted in. If I am going to dream I am going to dream big! Actually my real dream would be a 67-72 crew cab 4x4 done up in modern trim.
If I could only post the images I have in my head of all the great things I would build if I had the money!
Right now I am just happy to have a couple of trucks that get the job done when I need it done.