66 valiant floor removal

i finished drilling out all the spot welds on a complete 66 valiant floor to put in my 64 valiant. I didn’t have time to try it yet, but will I be able to remove the entire floor without cutting out the Pillar and removing the back door? Thanks
If It's a complete floor, you'll probably have to remove the windshield and possibly the dash to get it
out of the car. Same with installing it in the other car.