Dreadsteed Quest Preparation

[Lissa]

For the last month or so I've been trying to slowly prepare myself so that when my Warlock, Dragoon, hit level 60 he'd be able to get to work on his Dreadsteed, epic mount quest.  So I knew what was coming, I looked up the following guides for the quests:

Warlock FAQ on the Blizzard Forums
Dreadsteed Walkthrough on WorldofWar.net
Random Guy's Livejournal

Thus, I've known for a while that I would need the following to complete the quest
-406 gold (less if I wanted to skip having all of the reagents and convince a warlock who has already done the quest to come along and use their stuff)
-35 x Black Dragonscales
-6 x Large Brilliant Shards
-25 x Dark Iron Ore
-10 x Elixirs of Shadow Power
-3 x Arcanite Bars

So far, I have the following:
-35/35 black dragonscales (so I need to take Silverflail to UBRS a few more times)
-6/6 Large Brilliant Shards (Check!)
-23/25 Dark Iron Ore (I can probably get more by taking either Dragoon or Skybreak to BRD, and since both need to do a lot of quests there, I'm not too worried.  Dark Iron Ore is pretty cheap on the auction house, too)
-5/10 Elixirs of Shadow Power, with mushrooms enough to make 3 more (see below)
-0/3 Arcanite Bars but 1 Arcane Crystal (see below)

I'm fairly confident I can get the dragonscales and ore, on my own.  However, I have had terrible luck so far mining up arcane crystals and I don't have any alchemists skilled enough to make the elixirs of shadow power or do the arcanite transmutation.   

So that's where you all come in!  :)

First, does anyone have an alchemist that I could get to make the elixirs, assuming I can acquire the materials for them?  According to Thottbot, they require 3 ghost mushrooms each which I will probably end up buying on the auction house.

Second, does anyone have any ideas where I could go to find Rich Thorium Veins fairly consistently (or does such a place even exist?) and does anyone know what the going price of a transmutation to arcanite is? 

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At any rate, having healed for the Dreadsteed event in Dire Maul for Lissa's warlock, I'm really looking forward to going out there again to experience it from the Warlock's side!  Thanks, in advance, for any advice/hints you can provide and hopefully I'll be able to get started on this quest line soon after hitting 60.  :lol:

EDIT:  Yesterday I saw some pretty decent prices for things on the auction house and Mirajj sent me some black dragonscales so I'm now a lot further along in several things.  Now I just need to get a hold of Galreth online to get some Elixirs of Shadow Power made, get 2 more arcane crystals and do some transmuting.  Oh, and I'm level 60 so I can start the quests now!  B)
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FYI, you only really need to buy the Xorathian Dust and get the pages imbued. The only reason to spend the 250g to get the finalized items along with collecting the above items is so you can spawn the event yourself instead of depending on another warlock to do so. The main quest giver is the one that gives you the quest to get the Xorathian Dust, to get the pages imbued in Scholo, and then to go to DM West and fight the Steed and it's Master. All other quests, the gathering of the materials for the bell, book, and candle, are for the goblin so you can buy the materials for doing the event yourself (without another warlock around).