Old Ray, I've installed modern door handles, latches, locks, and power window setups in many old Mopar cars & trucks. My 48 Plymouth coupe has all the latches, locks, and handles from a Dakota in it.

This truck actually has fully functioning original handles, latches and window mechanisms, The only thing that doesn't work is the outside door lock. I suspect installing a new lock, which is available, would work well, there is just no lock on the drivers side which is my biggest concern. Using as much of the original stuff as I already am on this truck, is pretty far out of the box for me.

Pictures of my 48 Plymouth coupe, before, during, and after Dakota door handles. I have in process pictures if any one wants to see them.
Gene