Prentice joyrider at Southend

Hi,
I wonder if anybody has any memories and photos of the Prentice which was used as a joy rider at Southend airport around 1959. It was my first ever flight, cost 7/6d and took us out over the Roach estuary and back via the sea front.
I’d like to make a model of that particular aircraft.
It was a seven seater, though I think the idea was maybe two adults and three kids besides the pilot.
I also remember the prop made a periodic swishing sound on the long taxi out. I assumed at the time it was variable pitch as the engine revs didn’t seem to vary.
I have a picture from another site suggesting it was G-APJB an d in a light blue and red livery, but I don’t know if that’s the right aircraft.

Thanks,
PP