The ShiftstonedEternal Power Calculator is a deck-building tool that visualizes your odds of drawing enough Influence and Power based specifically on the cards found in your deck.
What about putting reap in your market and running 4 wasteland brokers main instead? Since you're not running any surge or lifeforce units other than Severin it's kind of a dead card unless you're using the combo. With broker you can ensure you don't draw reap unless you know it's a game where you want it. Also, I think xenan obelisks would be great in this list, though I'm not sure exactly what I'd cut for them.
I treid that variant before thsi, but the evenhanded golmen draw + devour etc is more consistans imo. and the midrange is far enough to stal. sure reap is sometimes dead, but on the otherhand you still have a lot of cards on hand all the time thanks to incarnus etc. and if I had a market Obelisk would be in it 110%! ;)