Hank,
:welcome::welcome::welcome:
You mentioned early on that your leaf springs were flat. I would suggest that you get ahold of ESPO Springs and Things. New leaf springs are relatively cheap and a good investment in your vehicle, often as cheap as various 'patches' to kinda make things work.
I Love your car!!! I go to lots of Mopar shows and events and it's always cool to see something different than the usual suspects and even better to see them on the road being driven. Another source to keep in mind is Wildcat Auto Wrecking near Sandy, Oregon. It's a big Mopar only wrecking yard that is well known and does a lot of business shipping far and wide. I mention it because Ed Yost who owns the place runs a 61 or 62 A-body drag car (383) that is a gasser style racer. They are really partial to these cars and have a bunch in the yard for hard parts and little pieces that you can't get new.