The '69 ignition switch bezel is plastic. Behind the dash is a metal bracket spot welded to the dash frame to hold the ignition switch and bezel in place.
Also pic of '69 shifter. I would imagine you could just change the knob.
Thanks for the pictures... I've got to figure out the ignition for sure. Does yours have the long switch or the short? I think 69's had the longer one and you're spot on the one in my dash is the shorter style.