Cheapest place for torsion bar removal tool/clamp?

Must have been doing it wrong! ;)

Just like you say is the magical way. Nothing is so magical it works every time. One Duster a friend and I had to snatch it apart with a Ford 8N chained to the K frame because the torsion bars were so rusted into the mounts. At that point we had literally tried it all. The tool, your way, a torch, and finally I got the tractor out. Since we were parting the car out, the damage we did to the body didn't matter. lol