Panhard, Diagonal Link, or both with ladder bars?

Quick question, and hopefully not too dumb of a question...

My 72 Duster was purchased as a shell pretty much. One of the PO's had already started the BackHalf on it when I took it over. I'm really just going for a nice street rod that can be driven around town to events and shows and may possibly hit a track a couple times a year (enjoy the drags but not really my priority).

As I'm getting close to finishing up the drive train and now have the rear under the car... It's a shortened 8.8 with 4:10's, posi and disc brakes, I'm wondering about my side to side movement and if the Diagonal link that I have is the best way to go for more of a street car? I'm a newbie to ladder bar suspensions and I'm learning as I go. As I try and do research I see different cars out there that have either the Diagonal Link or a Panhard Bar by themselves and occasionally I see setups with them both.

What do you guys think? Should I just stick with the D Link by itself, or is there any harm or any added benefit to also installing a Panhard Bar as well? I know I'm going to have a rougher ride with the ladder bars over a spring setup, I just want to make sure it's safe and as much worry free as possible.

Here's a couple of pics... The rear sitting on the lift and you can see the D link, and a pic as it's being fitted under the car.

image (1).jpg

image.jpg

rear.jpg