1965 A body 4 speed ball and trunion to Slip yoke ?

Beams said
Cuz it’s nice and shiny?

In my case, I didn’t have a ball and trunion driveshaft to start with. Sounded like OP needed to modify, or needed a custom driveshaft anyway.

If I had one that worked with little-to-no modification, I most likely would have used it.

Not having one is certainly reason enough. What I was getting at is if he has a ball and trunnion and it is good or in serviceable condition, that's his easiest and most economical way. I do agree what you pictured is a nice option.