Great stuff John, well done!
I have to say that seeing both of these craft fitted with spray gear is incongruous with my recollections of them! The Dancer was of course Colin Chapman's personal mount while AZRU used to carry about the late James Hanson (he who was once engaged to Audrey Hepburn)!
It seems as if Dennisimo sold the Dancer directly to Hutchings while AZRU was probably leased from Dollar?
Regarding Ross Harvey .. this name rings a bell. I have a feeling some of the Kiwis I worked with in PNG may have mentioned him and, if so, then it was most probably in connection with flying, either in the Antarctic or deer hunting back in NZ!
Keep the photos and stories coming.
Brgds
Sav