Just Suspension used to offer a 1.09" bar with 0* offset (vs the 30* stock offset), but they seem to have removed it in favor of a standard offset 1" bar. You might try calling them and seeing if they still have any laying around. Otherwise, your next size option is probably the 1.12" bars that Firm Feel offers. But if you use those bars you'll need to either get some 2" drop spindles or re-index the torsion bar anchors, unless you don't have a problem with the torsion bar adjusters being maxed out with the car slightly above stock ride height.
I have the FFI 1.12" bars in my car and love em, but I also have Magnumforce 2" drop spindles to get it to sit right. If you go with a 1" diameter bar you can probably avoid the drop spindle/torsion bar anchor indexing problem, and for a street car 1" bars are probably just fine. My car is pretty stiff with the 1.12" bars, and I still have KYB's and 15" rims with a 60 series tire.