Tubular control arms vs rebushing

My 71 dart is starting to get a bit rattly in the front, I can see the strut rod bushings are toast so I'm imagining everything ought to be gone through. I saw mancini has a bit of a deal on parts and I got a bit of a bonus from work so I'm in a good spot to get this done. Obviously, all new modern parts are going to improve handling ( tubular upper and lower arms, adjustable strut rods). But how much better...and it seems like new parts would just drop in compared to replacing bushings. So better handling and easier install, but $1000 dollars worth?

I don't do much more than occasional 'spirited' driving, it's not quite a daily driver but more than a fair weather weekend car