I cut the driver side hall closest to the Tonnele, on both the crossmember and the cross piece. Reboxed the part, well today tube inside the crossmember for the new bolthole then closed off the crossmember.
I made the upper hoop out of two pieces of 2" wide 1/8"stock.
I bent one to match the floor pan,then welded it to the cut ends of the crossmember. I then bent the other to fit inside that one. Drilled staggered 3/8 holes in both, then welded them together and welded the edges.