Undercharging- Alternator Pulley swap?

So, since these C-body Mopars are reportedly notorious for undercharging I've been researching and have found some information on doing an alternator pulley swap. Has anyone done a pulley swap? Any recommendations on a quality alternator that addresses this issue? I have a 1973 Fury with a 400. I still have my original alternator but I can't find anyone around here that is willing to rebuild it. I did find a resource about the pulley swap but I don't know what pulley would be correct and I...

Undercharging- Alternator Pulley swap?