I'll have a stab.
L-R. Ian Campbell, Frank Pearson, Bernard Knope, Gilbert Gluck, Mac Read, Glynn Baxter.
I was at the rally too somewhere.
Another time, I remember going to the old works with Glenn Shriver and going inside the old large works building in the middle of the site, just before they demolished it. Glenn wanted to preserve the large sliding door which he thought many bikes came out of newly assembled.
Alas, too late.
Regards,
Delboy.