1967 Dart Drivetrain swap.

well, you're gonna need to carry two spares for starters.

you'll need a custom built driveshaft most likely. depending on the trans it may or may not match the 904 yoke, and the carrier/u-joint for the van rear is gonna be different. (this is assuming the trans is a standard splined output unit, and not flange style)

radiator and shroud. the entry and exit for the coolant is in a different location for V8.

depending on what the motor came out of you may need a different oil pan and pick up.

i didn't see bell housing on the list.

the reverse light switch is on the transmission. i think you should be able to run from there and then just splice into the factory harness at the bulkhead. you may need the wiring diagram to figure out where to poke in at, or you could just trace the wires from the column.
Yes, apologies, I guess I assumed it was a given to have the bell housing with the trans. It's an A833 out of an A body that had a 360Mag, I'm unsure of the year but does have the standard spline output. And I do have the yoke for it. Found one off ebay.

The motor is coming out of a 77 B300. I haven't taken it out yet but thank you for pointing out the oil pan and pick up, I'll add that to my list.

I do have a V8 radiator in the car already from when I built the /6, I over sized it because it's gets hot here in the south.

As for the wheels, I was actually going to get some wheel adapters for the pattern size if possible and configure them into the width of the rear axle seems how it'd have to be cut any how.

If I'm not mistaken I have to get special headers to fit the A bodies correct?