K member swap

And sometimes those 4 retaining bolts don't all come out with the wrench. Sometimes there is a torch involved. And sometimes there is welding involved to repair the access window that has to be cut into the frame to put the heat where it needs to be.So I would break those loose before anything else, to be sure you're not gonna get into trouble later, after splitting everything else off.
Have you given any thought to the Schumacher mounts?