Sway bar options? Matching components.

MOA said
From what I've read here, it's very important to match up sway bar to spring rates.

Here's what I have...

72 Dart swinger.

.990 torsion bar, HD 1" under 5 leaf springs from ESPO. 18x9 rims w/ 18x35x265 nitto 555 G2 tires. Rear springs located 1/2" inboard. Subframe connectors. Bilstein rcd shocks. Powersteering, 16:1 box. Having firm feel rebuild it.

Not planning to auto X this car, however, that's about how the car will be set up only slightly less aggressive.

Leaning towards hollow sway bars for reduced weight.
1-1/8 front, 7/8 rear?

I ran a close setup for years. Get the Helwig hollow front. See how you like it and order rear if needed. I think the standard is 3/4”? For street wouldn’t put a big 7/8 rear. And not for track. Autocross may need big rear to help turn on tight course

OR get the adjustable rear.

Not sure how that fits/works with springs moved in. I think Hothchkis rear setups may address springs moved in.