1. Dennis Smith's Spider had no connection with the Valours. I believe some of its components were later used in a sportscar, which Smith held onto for a long time. Whether or not he still has it, I don't know
Bob beat me to it on that one

2. The Katipo was rebuilt as a sportcar, then as a single-seater again - but now called a Matich - and raced by Robbie Booth in the 1975/76 season. It was then pensioned off for hillclimb use, first by Dennis Phillips and later by Russell Greer, who won the 1980 hillclimb Gold Star with it. Again, nothing definite known of it since - it may have returned to Australia

3. Ross Williams called his car the Alross. It was built using the engine, transaxle and some suspension parts from the AML, itself a one-off F5000 car. The AML had in an earlier incarnation been the Begg-Daimler (and is again now)