a833 into a '63 Valiant

No need to go bickering back and forth about B&T vs U- joint. It don't mean squat to me. Save that for another thread.
I gotta build a new driveshaft no matter what.(#1)
I put a 8 3/4" in it.
I gotta cut a hole in the floor someplace. for a shifter no matter what. (#2) Car is a 3 on the tree to start with.
Car is going to be a " semi- rat rod". Most everything underneath is new and / or updated.
Body will remain as is.
I am not a MOPAR " purist" where as if l unbolt it from here, then l must bolt it up to there ,without any sort of modification. Seems like there are many out there.
I am an always have been a welder / fabricator. I have been oval track racing for over 50 years.
I'm kinda getting out of that. I thought maybe l would play around with this old '63 Valiant wagon l found for $300.
So you see, it dosen't bother me one bit to take a cut off wheel or torch or big sledge to something.
I started off just trying to get a little info on what would or not work.
That's one thing l liked about Chevy trans / engines. You can bolt up a 3 or 4 speed to anything from a inline 6 to a 454. ( within reason)

I was just looking for a little info.

Thanks and have a good day.