I appreciate all the help, my friend, but...
Decision made, order placed.
Came down to a factor of time.
Brewer's is months behind in orders and won't have a unit available until the end of May (!).
Dan was honest in telling me that and I appreciate it.

Had a nice chat with Jamie at Passon just a bit ago. We spoke on several topics and he shed some light on things I had been wondering about in Mopar world in general.
Dude sounds tired but that's a good thing. He also sounds honest.
Three weeks on his time frame.
I placed an order with him on the spot, including a roller type input bearing to install in place of the bushing.
Wife is fussing. She'll get over it.

He recommended going back with the late 60's 23 spline unit since I still have that crossmember, even though he advised that the early 70's B/E unit I have now is no different mechanically, just on shifter mounting options and I have the modified crossmember for that as well, which I'll probably be selling.

Now the wait begins....