Torsion Rod Adjuster Stuck

Some partial sucess. Got the strut rod loose upper end, shock absorber lower end loose, got yhe cotter pins out both upper and lower and bolts loosened, got the upper to release from balljoint and thought I was almost home. However with tension on it now only rotates when trying to get the last threads out. My approach now is to cut it, just need to get some saw blades. (Basically the only parts going to be saved for my build is upper and lower control arm. Think I need to get the strut rods new as well as it seems bent.

The other concern I have, since working on a almost complete bare body (no engine, no trans, no interior and so on, when I place a jack under the control arm it only lifts the body and I'm a bit concerned if I have a jack under the control arm it will throw the whole body of the stands when control arm releases?
My current thought is to have it high enogh the spindle assembly wont hit the floor and keep arms and feet away when cutting the ball joint.

The point with heating the t-bar red hot would have been nice but unfortunately I dont have a torch avalaible.