Let me first say, I am no expert.

Check to see if the rim, axle shaft, lugs, and other stuff on that side of the axle is bent. Check if frame is bent. You knot the panhard bar is bent. If it was mine, I would ditch the sway bar for now and find another panhard bar since that is what locates the axle from side to side. Put that on and see where axle is. If centered I would drive it around to see if I had any vibs. If not, keep dirving it. I dont think the coils are bent, they are kinda springy.

I just want to tell you both good luck, and we're all counting on you.