SEWER Line (cast iron) is bowed causing belly!?

Ive never seen cast bow. But I guess anything is possible. If you ask me instead of trying to wedge it which I dont see how that would work, it cast. I would just cut the pipe out move it to the side. And run a new line in PVC. You just have to make sure you have enough drop and pitch so the water can flow. If you had a camera line inspection I suspect the line further down probably has problems as well.