I'm not aware of any addon doing this so far.
Maybe CraftStore could be enhanced as the SavedVariables should store all accounts that use the addon, and thus you could read them from another account too.
But the UI and tooltips etc. would need to support that and I guess that would need some major overwhaul and time
![Frown](//cdn-eso.mmoui.com/images/style_esoui/smilies/frown.gif)