Well, The tube for the control arms is the same 1025 dom but 1.25" dia with machined weld in threaded inserts for the hiems and collars for the ball joints.
The tube bender is EZ-bend 90 degree tubing bender from midamerican equipment and supplies.
The whole works with dies set me back about $800. works real good but takes a little practice so budget in some extra stock. As for the swoopy bends I built my own roll type bender.
Now you know. Happy bending; Patrick