What Products are Needed in the A-body world?

How much interest would there be in a tubular transmission/torsion bar crossmember? I was told they rot out usually and need to be replaced anyways. I wasnt sure if people would like to drill all the factory spot welds or not? But then again, even if replacing the crossmember with a sheetmetal piece, you'd be drilling spot welds.
I would use poly bushings, and it would bolt in place. Would have to have plates cut for the torsion bar mounts, but that shouldnt be an issue.
Just thought Id see what everyone thought.
Thanks in advance!