Photographing coaches in Rochester definitely isn't as easy since the coach park closed, as the drop-off bay at the back of the now-former visitor centre is one of tight angles and inconveniently placed sunshine.
A little bit of internet research suggests YX06 AXR was in the care of Brian Jones coaches when seen on 17 September 2023 in the drop-off bay, a relatively unusual (for the Club area) Ferqui Solera-bodied Mercedes Atego.
From memory, and the suits in the background of the picture of GT 5431, there was a wedding at the Cathedral on 23 September 2023, and a number of minicoaches had been hired to provide transport. The registration suggests this likewise fleetname-less Mercedes was with Grange Travel of Gravesend, based (as with Brian Jones) in what must be the most densely depoted area of Kent. It was caught engaging in some seriously suspect parking outside the Corn Exchange.
Britannia's 528 is another Mercedes, with different bodywork to the Grange example, but a company that likes people to know who they are! This had slipped neatly into the almost perfectly sized spot just outside the Cathedral, in a road which doesn't seem to have a name - it could be an offshoot of Boley Hill, College Yard, or Minor Cannon Row.
Chris