How do you install these? Seems welding stainless steal to steal wouldn't quiet work?
You can weld stainless steel to steel.
The one bottom I replaced was rotted out in the middle. I cut the bottom out, leaving about 1/2" all the way around still welded to the cabinet. I welded a flat plate to that and used rust converter, then seam sealer, and then coated the entire cabinet with rubberized undercoat.