advice, i would phone IND a couple of times, and ask about you having a british and irish passport if your going to try the family permit, becuase if i was you, i would want to be 100% sure that there was going to be no problems later on, just to save some money..

but thinking about it, it doesn't say anythng about it in the immigration rules i looked at, so its probably ok, a loop hole maybe the gov will close oneday ??