Just my observations....#'s 1, 2, and 4 look to be the '72-up standard column ignition lock cylinder. #5 looks like a later tilt column lock cylinder. #'s 3, 6, and 7 are ignition switches for the '68 and older models. They make some with and without a ground terminal, some with and without the lugs for locking in the wiring plug, and there are some with a different location for a slot or lug that orients the switch location and keeps it from rotating. #3 looks to have the slot, and it looks to be at the bottom of the switch once mounted. I can't tell from your photos if #'s 6 and 7 have a lock cylinder (like #3) or not.
