that looks pretty good, actually. not sure if you really need 3 hourglasses, unless you plan to bait for PC, which is fine (albeit expensive, if you ask me).
to speed it up, i'm thinking upgrading it (sanctuaries cost less, so does quintessence), so that might solve your quanta balance...
i took the opposite road when i started upgrading my decks: i started by upping my quantum pillars, and it really does speed up deployment (which is good)
just so i get the strategy: you pop your boneyards, then a quinted oty and a quinted druid, so you have your horde. that's it?
what is your top target for enchant artifact? the shield or the eternity? maybe you could take out rain of fire for a second one? RoF seems overkill considering you've got a quinted oty, but i may be wrong...