Sawzall... cut the bolt. if you can, squeeze inside the mount = if not cut outside so you can at least get the swaybar out of the way. The shock might be able to get rebuilt if you know who made it. I think it had a "kink" that shows in the body didn't it?

If you have a set of acet/oxy torches you could try some heat. but without a laser type temp tool, I wouldn't try to get it to hot. If you can get it hot enough, you might be able to start moving it.