MTG Salvation

I've built what I reckon is a fairly ordinary casual Doran EDH deck, and I was hoping for a hand tuning it and deciding which, if any, expensive cards are worth picking up for it. Here's the deck:

EDIT: For convenience I've got this up on tappedout. Sideboard is cards I own, Maybeboard is cards I don't.
I've also got some cards that I own (hah, this is ALL the cards I own other than the above) and might want to include. Quietus Spike is probably going in, Utopia Sprawl or another 1-drop piece of ramp, too. Some of these are harder. Is Indomitable Ancients worth a slot? Argentum Armor?

• 1x Archers' Parapet
  
• 1x Argentum Armor
  
• 1x Brave the Sands
  
• 1x Disowned Ancestor
  
• 1x Erase
  
• 1x Indomitable Ancients
  
• 1x Quietus Spike
  
• 1x Reach of Branches
  
• 1x Rebuff the Wicked
  
• 1x True Conviction
  
• 1x Utopia Sprawl
  
• 1x Vhati il-Dal

There are also some cards, mostly cheap but some $2-10, that I'm giving serious thought to buying and including. Which of these are easy swaps for stuff that's in there, or obviously a good value for the 5 bucks? (Like, I'm thinking Sylvan Caryatid would be a no-brainer if I feel like paying the money.)

• 1x Accorder's Shield
  
• 1x Bladed Pinions
  
• 1x Blind Obedience
  
• 1x Chromatic Lantern
  
• 1x Command Tower
  
• 1x Courser of Kruphix
  
• 1x Dauthi Embrace
  
• 1x Duress
  
• 1x Fireshrieker
  
• 1x Inquisitor's Flail
  
• 1x Lightning Greaves
  
• 1x Nyx-Fleece Ram
  
• 1x Orzhov Basilica
  
• 1x Profane Command
  
• 1x Selesnya Sanctuary
  
• 1x Shizo, Death's Storehouse
  
• 1x Sleeper's Guile
  
• 1x Stonehewer Giant
  
• 1x Swiftfoot Boots
  
• 1x Sylvan Caryatid
  
• 1x Trailblazer's Boots
  
• 1x Vorrac Battlehorns

Beyond that, are there any balance issues I'm missing? Will I wish I had some way to fish enchantments out of my graveyard? Do I really need 6 pieces of power-hate in this deck?

EDIT: For convenience I've got this up on tappedout. Sideboard is cards I own, Maybeboard is cards I don't.

I've had a Doran deck for quite a few years and have tried a lot of different things with it. I never really liked running vanilla creatures with a high toughness because they're ineffective without Doran on the field. Rather, look for creatures that have abilities and also happen to have a high toughness. Some of my absolute favorite toughness matters cards that I don't see here are Rhox Faithmender, Eidolon of Rhetoric, and Magus of the Tabernacle. I'm not sure if Avenger of Zendikar] is out of your budget but making his 0/1 tokens effectively 1/1s is surprising strong. Also Fell the Mighty and Wave of Reckoning] are great board wipes.

I'm running both Fell and Wave, plus their less-good brothers, Retribution of the Meek and Solar Tide. Avenger of Zendikar is plausibly within my budget, but I'd want to put in more land ramp and Plants, cuz right now it'd just be supporting Wall of Blossoms and Tree of Redemption.