Hey Mattax,
Yeah that manual is a great resource. The accompanying video from the Tech Series is on YouTube as well. I posted another thread on the Steering Forum asking if anyone had used the 67 rebuild kit that’s on EBAY from a vendor in NC. CJRods......supposed to come with the white plastic support, the actual mast bearing, a spring and a collar. $70....
IIRC Chrysler had a parts package for the column. Maybe that's new old stock or a repop of that package. I know I bought and still have some individual parts from a dealer - but pretty sure not the spring etc.