I’ll go along with that.
There were a couple of Sunderlands beached and then foundered against rocks along that coast.Allan

You are probably right, I cannot help looking at the way they seem to have been ‘gathered’ together, rather than if the airframe broke up over time and deposited engines and props where they fell or dropped off the wings. They seem too condensed in a small area than heavy objects like that to ‘wash’ together.