The price per council drops each turn…so just let a bit of time pass before you call the Assistant to setup a new council if you can’t afford the initial PP.
Other than the economic first i have had some situations where picking a different 2nd council early was very beneficial. For example i had a game where i noticed one of my starting leaders had 35 Covert Ops skill (plus a good War score). I immediately setup the Spy council and started carpet bombing the world with spies. Every attempt was a guaranteed success with about 75% being critical successes (2x spies). By turn 20 i had about 80% of the world completely mapped showing all the hex assets and units. I cannot express how important/useful this was.