If you want the latest and greatest setup our tubular 1-1/8" front and 3/4" adjustable rear bar is the way to go. Part numbers are as follows
55906 67-72 Mopar A-body Tubular 1-1/8" FSB
6907 63-76 Mopar A-Body 3/4" Adjustable RSB
If you have a 73-76 K-member then use
55905 73-76 Mopar A-Body 1-1/8" Tubular FSB
From your pic it looks like you're on the East Coast. If you want personal service, try the following:
SC&C (610) 346-8154.
You can also purchase them through Summit, Just Suspension, or Suspension Connection.