How to get Plans: Sulfuron Hammer

One on my WoW goals was to shed some light on how to make Sulfuron Hammer. I've been looking into all possible sources (thottbot, allakhazam, wowwiki etc) and got confused... Well, as they say, if you want to do something - do it yourself!

So put Sulfuron Ingot in your bags (well, I bought Sulfuron Ingot at AH for 900g), clear your way to BRD bar and talk to Lokhtos Darkbargainer there.

1. When you have Ingot in your bags the dialog window with Lokhtos Darkbargainer contains different words - he is indeed the most greedy person in this game ;) -

2. Indeed I click on "...What is the offer" -

3. Click on "You've got my attention" and get another screen, now it is my time to be greedy :) -

4. Click on "Give me the contract" and get "Thorium Brotherhood Contract" in your bags -

5. Click on "Thorium Brotherhood Contract" to get this quest -

6. As soon as you accept it question mark above Lokhtos Darkbargainer head becomes yellow, click on him and you get this screen -

7. Click on "A Binding Contract" quest to get this screen -

8. Click on "Continue" and get this screen -

9. Click on "Complete Quest" and viola! - you got that one -

10. Learn this plan and enjoy your new ability :) -

Bottom line:

A. You should NOT be hammersmith to get it, any blacksmith can get and learn it.
B. You should NOT be exalted with TB, I'm revered and got it.

This quest line is a bit confusing - you "show" Ingot to Lokhtos, he gives you a contract, then you return it with Ingot to get the plan... No actions except a few clicks... I guess there supposed to be some tough instance action but somehow it hasn't been implemented (the same way as getting a mount for Paladin at lvl 40). Well, I must admit it is too easy but I'm really happy to make it.