What are these guys doing? Their web site is not very informative for someone not in the know.
I worked Kermadec back in 1961 on 40/20/15 and 10 meters. Never have had an 80 meter antenna, and there were no WARC bands back then. Got the QSLs for all four of the bands, though. 90 watts of CW, a dipole for 40 and a trap vertical for the rest.
Garth - actually got them with 15 watts AM on 10 and 15 as well as CW!
You guys on the wrong coast get all the really nice Pacific DX that I would kill for. OTOH I can work anywhere in Africa or the Middle East on a wet string for an antenna.