Searching the compendium for solo controller leaders as examples gave me a bunch of Sorcerer Kings from the Dark Sun creature catalog!

So, in short, **Yes**, sorcerer-kings have already been given official stats.

 - [Andropinis, Sorcerer-King][1] (Level 25 Elite Controller Leader)
 - [Dregoth, Sorcerer-King][2] (Level 30 Solo Controller)
 - [Hamanu, Sorcerer-King][3] (Level 27 Solo Soldier)
 - [Nibenay, Sorcerer-King][4] (Level 29 Elite Controller)
 - [Tectuktitlay, Sorcerer-King][5] (Level 22 Elite Artillery Leader)
 - [Daskinor, Sorcerer-King][6] (Level 20 Artillery Solo)

Scale the level to your liking and you're good to go!


  [1]: http://www.wizards.com/dndinsider/compendium/monster.aspx?id=5506
  [2]: http://www.wizards.com/dndinsider/compendium/monster.aspx?id=5509
  [3]: http://www.wizards.com/dndinsider/compendium/monster.aspx?id=5511
  [4]: http://www.wizards.com/dndinsider/compendium/monster.aspx?id=5521
  [5]: http://www.wizards.com/dndinsider/compendium/monster.aspx?id=5524
  [6]: http://www.wizards.com/dndinsider/compendium/monster.aspx?id=5650