Complaining about ripping POE off is like complaining Burger King is ripping McDonald's off.
D3 desperately needs more depth. Problem is the devs are to stubborn to realize it.
i made a similar post some time ago, http://www.diablofans.com/forums/diablo-iii-general-forums/diablo-iii-general-discussion/103793-concept-w-pics-improving-the-nephalem-rift-game
i think your idea puts a lot of depth into the game. It needs more tuning but as a basic idea it sounds like a lot of fun.