B Body drums on an A Body

The more I think on it, the more I'm leaning toward all drum. So my C-Body BBP axles, if cut and resplined, could work as long at the B drums and matching backing plates were there? Would rather not redrill. Already have the entire C-body rear that just needs measured and cut, so maybe I just get the B drums with all of the hardware and bolt em up to that rear. And the fronts, if I don't go with the discs, would need new assemblies to fit the B drums. If there anything I'm missing here?