Okay, I didn't read everything but i don't think this is the best way to do this. If we have the Admins supporting factions than there will be less power trading, meaning less traders for pirates. Also, this would mean a faction will never fail because of a loss of money.
I think it would be cool if we had the trading factions giving tax to the authorities of their house every week/month. This would allow economy to either support or destroy their homes.