Hi Damien,
I think your list looks decent, but there are a few changes I would make. First, not having acces to Wasteland is of course a major blow to a strategy like yours and if you're going the Ghost Quarter route, I would seriously consider Leonin Arbiter and/or Aven Mindcensor.
One of the most important things in a deck like yours is that you're able to deploy a turn one threat, which your list is not capable of doing. I would definitely find room for 1 Lotus Petal and 4 Elvish/Simian Spirit Guides. I think you could cut the 2 Rest in Peace.
I would also cut the 3 Fragmentize for 3 or 4 Leonin Relic Warder which is one of your best cards. I'm not a fan of Mother of Runes and Grand Abolisher, so personally I would cut these. If you can afford them, Sanctum Prelates are very good.
I'm also not sure if Eldrazi Displacer is where you want to be in a list like yours, but I can definitely see the argument for them, but then I would probably rework the manabase a bit to support it better.
You're very soft to Oath and I would find room for 3-4 Grafdigger's Cages in the sideboard. Before Containment Priest was printed, I've always advocated playing 3 Grafdigger's Cages maindeck, but now that Tinker and Yawgmoth's Will strategies aren't very dominant, I think you're better off with Cages in the sideboard.
Hope you could use my feedback.
I've played a deck looking something like this (off the top of my head). Perhaps you can use that as inspiration although it's powered.
Lands: 22
4 Cavern of Souls
4 Ghost Quarter
4 Wasteland
4 Plains
4 Horizon Canopy
1 Strip Mine
1 Karakas
Artifact mana: 7
1 Black Lotus
5 Mox
1 Lotus Petal
1 Mana Crypt
Creatures: 28
4 Leonin Arbiter
4 Leonin Relic-Warder
4 Phyrexian Revoker
4 Thalia, Guardian of Thraben
3 Sanctum Prelate
3 Spirit of the Labyrinth
3 Thalia, Heretic Cathar
3 Vryn Wingmare
Enchantments: 3
3 Stony Silence