Great progress!
Thanks Jim.
Been flailing away!
Keep skipping around from one area to the next...

Tore the front end down.
At least, down enough to make a shopping list,
Then throw it back together just to be a roller.
Will be using the chassis as a jig to straighten the body...
The PO said that the brakes were freshly re-done and ready to go.

Our shopping list includes only one item, and that's "Everything"!

Seen all kinds of ways to secure cotter pins.
Could this possibly be factory GM?
Time for some homework on this great site.
Thanks again for all of the help, gentlemen.