Hi
That link is only for the pilots notes.
The guy I think, is after a technical manual, i.e. the full A.P flight manual.
Me personally I have never seen one for sale, only seen one I think at the PRO/NA in kew , London, but I imagine that the RAF museum at hendon has one.
Either may do some photocopies if you enquire, or maybe even put it on CD ?
cheers
Jerry