Are dart sports mostly gone

I wish the '73's had gotten the retractable 3 point seat belts and fender braces of the '74. Going to have to add both (or something similar) to my Hemi car.
You can get new 3 point retractable seat belts for the duster with the dropper so its not cutting your head off. Doubt the fender braces do bugger all the steel is pretty thin....... if you want bracing u need to do full chassis connectors unless u want to crack your a piller lead joints.