Strange that the Home office didn't consider Linton on Ouse when they'd already earmarked it once.
Anywhere they choose, airfield or not, would need a concerted effort to get it ready to accomodate all these people even if it will only be temporary and we already know that the infrastructure at Scampton has been massively neglected in recent years thus it would take a long time to get ready.
Course if the Army still has the temporary accomodation they built in double quick time for the 'Nightingale' hospital, it could be done, but where?
Personally I'm an advocate of putting them all on a spare cruise ship or car ferry. (Presumably Invincible, Illustrious and Ark Royal have already been disposed of)