I see in post #50 you have a pic of Mark Brewster's Torana..... great to see his Father Ted Brewster was also there in the Group N, punting his Cooper S round with aplomb.
Not a bad effort for an 86 year old who has been running the Cooper for decades and other stuff previously. He and his ever present wife Margaret turn up with the trailer, unload everything, run the car unaided then load the Mini up and pack the car up and drive home, always with a smile. And he can still show the young 'uns a thing or two.
As an aside, a few years ago British actor Martin Clunes was doing a series on Islands of Australia and visited PI.... on hand was the then 82 year old Ted to take him for a few laps of the circuit in the Cooper S.
The PI bit is about 12 minutes in on this video.:
https://youtu.be/r_toVm4KskE