Fantome, I am simply happy that you and other like minded can enjoy them rather than them gathering dust in my cupboards. The next one "Big Boat of the Islands", you will enjoy as it refers back to the airline days back in Australia, of those two Sunderlands you mention, hopefully later today.
I believe the book you are refering to is "The Last Flying Boat" by Peter Smith (the chief engineer who is featured in the videos). I think I read somewhere that he is no longer with us, but someone will correct me if I'm wrong. Your prompt reminded that I had it somewhere and sent me scurrying through my bookshelfs, and lo and behold its in my hand. It turns up on ebay, infact here's one today;
THE LAST FLYING BOAT ML814-ISLANDER, AROUND THE WORLD IN 50 YEARS | eBay