John,
Thanks for the offer - but I agree that we're unlikely to turn anything relevant up on this.
But your Dad's notes may be just what I've been looking for on another matter ! He was assembling Vengeances in what is now Pakistan, you say. Could it have been in Mauripur (near Karachi ?). The (improbable) tale told to me when I got out there at the end of '42 was that the first batch arrived out there CKD, but all the paperwork (inc Assembly manuals) had been lost.
Chief Technical Officer had a set of the crates (for which we'd paid an extra $800 per aircraft in the US) broken open and the contents spread out on an empty hangar floor. Then an aircraft was assembled in a sort of giant three-dimensional jigsaw. When they'd finished, and there were only a few bits left over, it flew ! and they soon got the hang of it after that. (Full story on the "Gaining an RAF Pilot's Brevet in WWII" Thread (p.129/#2568).
Now if the story is true, and if your Dad was part of it, he'd surely remember that !
Cheers, Danny.