Pricing of Mages ... is it balanced?

[Sheap]

due to the fact that mandatory turmoil will cause you to have about 1/2 to 1/3 of the income of a normal player.

How come you keep saying this? Turmoil-1 earns 75% as much as Order-3, and that's not even considering the points you save (which could be used to buy Production or Growth to reduce the shortfall). If you've taken Sloth or Death (as I know you are fond of Sloth) then the difference is even less than that.

Yes, the occasional natural disaster will reduce your income, but it will not cut it in half, especially if you use the points you saved from not taking Order to buy Luck.