"Sleeving" A- body brake drums?

Hey all...I'm not worried, nor do I need new drums at this time. It was just an idea I floated because these drums are getting hard to find. I really think if you can sleeve an engine block, aluminum at that, you should be able to sleeve a brake drum. Besides, the rear brakes only contribute approx. 25% of your overall braking force anyway.
You CAN'T do it for all of the reasons I already listed back on the first page of this thread, and to weld/re-machine again I would charge more to do that than cast a new one
from scratch, it ain't gonna happen and it's not a sound proposal........................