I did it on a couple of cars side by side at the same time...and I went around the core support areas. (they where not Mopars, but Holdens..and done the same way basically with a K frame that drops out with all the suspension)
The bracket bolted to the bumper mounts would be another great way to go and nice and solid. Might be a little harder with yours and the odd shaped bumper
Might see if there is a way to grab from the bumper bracket areas perhaps without hitting the front valance or stone tray

I did a Dart ages ago too now that I think of it, think I went off the bumper area back then too