I am not sure on your basket. But, I can tell you I made one with expanded metal and I cant weld or anything. You can bend it. I just started it in a circle and wrapped it around a propane tank and then used SS screws to attach the ends and then to the grate.
I know nothing about metals so I didnt want to take any chances...
But I am an idiot so if I can do it with expanded metal...anyone can.