Yes they are privately owned, they do shows, go on you tube and look for Thunder Run bruntingthorpe, I forgot to add the Sea Vixen in the list of runners.
They are kept to airworthy standards as they were maintained in the RAF but are not airworthy and cannot fly, the Victor accidentally got airborne and landed again a couple of years ago, considering it had been grounded for 20 odd years it was a testament to how it had been looked after that it returned safely to earth, that's on you tube too..