Chartering an AMA club isn't exactly hard! I am a club secretary and handle the chartering thing every year. I would think the only downside is you need at least two or three members so you can share the official duty's. Charter fee is minimal and the main requirements are to belong to the AMA and follow the safety rules. I know that is a non starter for some but then don't complain, get the IFF installed on your aircraft and fly anywhere. No one is forcing you to join the AMA.
Larry