The lower arms are setup at ~28" right now.
I could have gone much longer and pushed the axle forward a lot. That means a gain in an already long wheelbase and the move to full hydro steering.
I could have set the mounts back further, but that would have meant dropping the brackets down further. I didn't like that option. I also didn't want to screw with all the cutting and fabbing that would entail making a completely custom tranny crossmember to gain 2"-3" in arm length.
You can't "wrist" anything other than a radius arm like you see on older F150s and Broncos. You can set up suspension to mimic the end result though. In this case, since the coiled D30 has its upper control arm mounts on top of the pumpkin and over the vaccuum disco, I reused them. Hence the angle they are turned in. You could remove the passengerside to mimic the effects of a wristed arm, but because of that angle, you would lose a lot of control of your caster. I'd rather keep that control at the loss of some flex.
In regards to the spring rub issue, you could cut away a significant portion of the bucket, but then you get into issues of the strength of the bucket and reinforcing it.
The other option would be to cut out your frame, recess the bucket in there, and then reweld it. It wouldn't be terribly hard for someone with a torch (or cutoff wheel) and a welder, but the average Joe wants something bolt on. Recessing it into the frame would eliminate any rubbing problems. It would also save you money in terms of the entire "kit."
That said, I would still push this kit over the leaf kit. I think it is easier to setup properly, offers you adjustability in ride height and will be easier to install.
The other option would be to forgo the buckets and traditional coils and run coilovers. This would also eliminate the rubbing, save space, and still offer the adjustability. Of course it would require fabbing up a pair of hoops and would be more expensive, but it would solve all the problems as well as offer the benefits that coils bring.