Need help, can't remove a bolt from my k-member

Well a little update now. I couldnt find a way to cut into the top of that piece to weld it. So i removed the K-member. Which turned out to be a good thing. The piece that the power steering box connected to was cracked in the middle all the way through. And there were several smaller cracks in various spots in the K-member.

I took it to a friends shop(no welder or welding skills) and he welded a new nut, seam welded the K-member and welded all the small cracks we found.

Oh and i learned that the broken nut wasnt due to an impact gun after, its due to a moron. That stripped bolt was cross threaded and the last person who wrenched on that bolt just kept cranking down until those spot welds broke.