I have an '84 Apollo Regent, but remember the Apollo MK IV and V very well, as I deliberated buying one of these instead of a Peugeot PX10E form Russ Hay in Victoria. I believe it was in'76. Th eIV was a metallic Orange an dthe V a metallic pruple or mauve. I Believe the V ahd Dura Ace but do not recall the IV's components. They were nice rides. After a year or so, I wished I had bought the Apollo. Some stores, like Carleton Cycle, were bringing in Sekines and Apollos with high end components , at that time, and installing the hardware on their high end house frames, and then selling the bare japanese frames. The bikes prices were worth the components. A friend of mine bought a frame for a very good price.
Brent