NOPE, said Jeb, and proceeded to make it a NETHER boss, able to destroy obsidian, require the death of at least 120 Wither skeletons for their heads and soul sand, not to mention make awesome beams of light with it's drop. And an explosion that can kill full Diamond armor gentlemen. On the bright side you can have Pumpkin Pie.
Soul sand in the formation you'd make an Iron Golem. Place in desired formation. Proceed to kill tall skeletons found in the Nether. Get 3 of their heads. Place on Soul Sand on top. Get horribly awesome Wither. Optional: Run to friend's animal farm for maximum grief and distraction (and unfortunately, I think the Wither is healed then).