I guess that's why I'm known as a "hoarder", lol. The yards here got nuthin', so when I part a car, NOTHING good goes for scrap. I save framerails, floors, you name it.
I have a few F body floor shift columns. By the way, don't forget that in 80 the dimmer switch went up on the column, so that kinda leaves the J bodies out for your 78.
No good on the grille at the moment. As for the armrest, I am waiting for delivery of a parts car with red interior. Currently have green, blue, and tan.