The old military hospital at Halton is still sitting idle and empty. It may be impossible to return to the full network of military hospitals, but it should not be impossible to fairly rapidly return one to use.
When not required for op casualties, it could and would accomodate dependants and civilians, as it always used to. (My dear old mum passed away in Halton, and while advanced cancer is never going to be a bowl of cherries, the PMRAFNS staff and RAF medics certainly provided the best possible environment, care and treatment for her, giving her useful and happy extra months, and then treating her with kindness and respect, allowing her to fight and die with dignity).