You forget yourself.
No MCFC, no NYCFC (Barca looked at doing this 5 years ago, perhaps not in NY, and walked away). You can discount the bigger club all you like, but an ax-City player at the helm, City players coming to the club. Do me a favour.
Think big, be big, but do not bite the hand that feeds you.
But it´s not MCFC that feeds NYCFC.. It´s CFG really, I mean. Would MCFC be able to fork up half a billion towards a stadium and the franchise fee?