[Arran]

 Since you say that the New Zealand made Pacific sets used chassis made by other manufacturers maybe this was a later production set where they updated the chassis to use octal tubes? I have a Canadian Dominion Electrohome built Serenader set where the service literature gives two tube lineups, one uses an 80, a 42, a 75, a 6A7, and two 6D6s, the other uses octal equivalents except for the rectifier which is still an 80. Since most of these New Zealand manufacturers were no doubt small, even by Canadian standards, they probably forgot to change the tube chart on the inside, even Philco messed that up once in a while when they had two different models sharing the same cabinet. Then again the ad mentions that the Raleigh model was offered with either a "Four Valve" or a "Five Valve" chassis, the tube chart shows six tubes and says "Six Valves", how many tubes are in the chassis you have?
Regards
Arran