Are these torsion bars gonna be too big for me?

WEll, I guess what I am asking, is, for a /6 car is a 1.03" bar gonna shake fillings loose over rough pavement? It is my DD, so I don;t want to sacrifice my ride too much, though I would like it to handle better. I'm wondering if maybe something in the .920 range would be better suited for my car, and if so, where can I get a more affordable set than the Hotchkis ones?
The .920 would be a smoother ride and still beef it up. Like I said, the ones over 1 inch ride real stiff. I have Bilsteins and sway bars. Super stiff seems to defeat the purpose of my Bilsteins.