As mentioned on other threads, Bucklers, and Ralph Watson, Bruce Dyer sent me some photos from a meeting at Taupo in 1998;
this seems the right place for the Mallock U2's and also the Fiat Targa.
Fiat Targa
Looks like the " Northland [ Jackson-Logan ] Special " and a Riley Special in the background as well as a single seater
Have a couple of shots of a Kieft too .. unsure where to place them as is a single seater !!