I like your description of the Hunter solo, Beags - was there myself the year before.
For me the two that stand out the most are:
First solo: 2 Aug 67 - Cessna 150A G-ARSB, Cumberland and Westmoreland Flying Club, Carlisle (Flying Scholarship).
First solo Spitfire: 2 Aug 89 - Spitfire Mk XIV G-ALGT, Rolls-Royce Filton, Bristol.
It was a long 22 years to the day between them!