I had to move a clip on a guys car before but it was the cut and butt installation. Here are some pics of what I did.
Here was the issue with who ever done the original clip.
Here's a close up pic of how it was tied it together may give you some ideas. I cut the cut lose and removed enough metal to make it center and butted it again. The area final weld it was boxed on both sides and the diamond shaped plates reinforced over the vertical welded area. I don't believe in leaving vertical welds with no reinforcement. It could be over kill but its safer at least in my head.lol Its just one of those things I do and other may not agree.
After

We managed to get a couple of other small things taken care of. One was blacking out the front of the core support. When the sun hit the front of the car just right that green paint on the core...
1968 Plymouth Valiant 1st Gen HEMI