The Sorcerer can Extended Dominate person for 16 hours and force The Wizard to prepare the right spells.
The petrified Wizard is now a Sorcerer's Minion.
1. Creating a Simulacrum gives you another chicken. "You shape an illusory duplicate of one beast or Humanoid that is within range for the entire Casting Time of the spell." All you have is a Chicken, unless you Dispel your Polymorph beforehand.
2. Once you have a statue of a former wizard, you'd need to invoke DM fiat
again so that the reading of the Flesh to Stone saying that "If you maintain your concentration on this spell for the entire possible duration, the creature is turned to stone until the effect is removed." is no different than the one described above, mechanically. Because if it is read literally, the victim is turned to stone until dispelled. In which case, Simulacrum fails by virtue of needing to be cast at a beast or an Humanoid, not a piece of stone.
4. Being unable to learn something new, the Simulacrum would be unable to memorize new spells.
5. You'd need a spellbook with Meteor Swarn even if it could, which you don't.
A good idea, a copy of one of Alfred's success against a demigod wannabe where he Simulacred the DMM, but you still need to work a little on the execution.
Edit: I'll now have to integrate into Foggy Bottom's Chronicle the fact that the landscape is modified nearly daily, as a resident Master Illusionist expands his 10-days allotment of 7+ slots to create Mirage Arcane over 40 square miles (that's a 10km around Foggy Bottom, roughly) within which Malleable Illusion makes him pop structures and landscape...