Looks like it has plenty of power. As far as lowering parts go, hummmmmmmmmmmmm, gooood question.
You can drop the front with a twist of the tortion bar adjusters. There located in the lower control arm, it's a big bolt. You'll have to get the car re-al;igned after you get the ride height.
IDK about the spindle though. A better way to drop the front.
On rear springs, MoPar used to offer and may still offer a zero arch leaf spring which should drop the rear alot.