I think the problem is you're throwing steering in with suspension there.
Because I'd like you to look at your ZJ and, assuming its close to stock, you'll notice that 4 control arms and a trac-bar (panhard) co-operate to locate the axle as it cycles through the suspension travel. That suspension is performed by coil springs, damped by shocks.
Now go look at a leaf-sprung vehicle like a waggy. Yes, the steering may be transferred from the steering box via a pittman arm, draglink, and tie-rod but that has nothing to do with keeping the axle under the vehicle. Now look at the parts that hold the axle in place, and suspend the weight of the vehicle above the axles.
See where the similarities stop?
Either way, I demand that you post some pics of this once you start cutting and welding.