hey there, i already tried making a redstone auto sorter with several people, doenst look like its gonna work
not possible because of how the hopper system works with custom plugins. hoppers now move items a stack at a time so this is not able to be done sadly
I've heard once that someone found a way but we have been developing some more custom hoppers to solve issues like this one.
you could feasibly do it with droppers/dispensers, but it would be a massive in size, ugly as sin and likely break if the chunk its in were unloaded at the wrong time. So, possible, but not probable.