New Zealand Datsun Club

Im after a Torsion bar (a la your ute/van) for converting into a swaybar.
I need something about 28-32mm in diameter (at the bar, not the spline if its bigger/smaller) and ideally 930mm long. With identical splines at each end.
What you guys got?

PickaPart visit?

will probably resort to that, but this was requires less lying in mud measuring cars. So thought i would try this way first!