If one of our magnificent vendors on here wanted to sponsor a truck and do one, I'd let them have mine to do it with. I'd love to have a 6.7 in my personal truck. My company truck is a 2015 F550 with the 6.7 and I love it.
There was a guy on another forum that put a 6.7 in an 02 super duty a couple of years back. Here is the video. https://youtu.be/vimgzD1jFVE
I have scratched my head of putting a 6.7 in an obs but by time I figured I was done I would have more time and money involved than just buying a 6.7 truck.