gopher01,
I was on 30 when W/C Tony Main was the boss and the anniversary a/c was his idea brought to fruition with the assistance of, I think,
OC B Line. As I recall the cargo compartment was set up with a display of the 'Labours of the RAF Hercules' . I did not go to Marietta (wonder who I sent !) but did lots of UK airshow trips in it. May even have done one with yourself or smudge.