Thats an impressive list of restraints... what if we take it a step further... what if any law that a politician makes were to apply only to the governing class for the first year. So for example, want a tax hike? Fine but, you have to abide by it first and in fully disclosed view. Make their lives constantly scrutinized while in office.
That way they know exactly what they are inflicting on others before they confirm it for the rest of the populace.