Reviving this thread.
Great writeup. Adhesive is the way to go for floor pan repairs. As you said, why weld? It's not a structural area. And your adhesives were strong enough to lift the car.
Again, great work. I plan to do the same in the near future.
'95 YJ 123bhp 4-banger powerhouse.
UPDATE: 2.5L ENGINE RETIRED; she was still running strong at 212,000mi.
4.0 swap in progress.