Autogyro Commiserations

The New Zealand Autogyro Association flyin was rained out over the weekend by the tropical rainmaker that has battered areas of the North Island.  However here is a look back at a couple of autogyros at Tauranga in sunnier days:

ZK-RBP was a Wind Rider Gyro that was registered in December 1991 and was cancelled as withdrawn from use in September 1999.

And this Australian Skyhook autogyro was also on the field.  It never appeared on the New Zealand civil register.  

The photos were taken at the 1992 SAANZ flyin at Tauranga.  Can anyone add any information in these two interesting rotorcraft?