Are you sure you are speaking of where the Swaybar Mounts?
The pictures show the Thrust Rod.

If there is no special repair panels made it would be nice if you were able to go to a Junk Yard and cut oversized sections of what you need so they could be welded in.

But, that brings up the issues of dimensions.

Body Shops have books that have points of measurement and dimensions so that can try to restore things back to normal. Without Having another Car to take measurements from I am not sure how that could be done.

__________________
84 300D, 82 Volvo 244Gl Diesel