Seville seems a long way to go for training flights. I assume there was a very good reason when it seems the rest of the Brits were using East Midlands, Stansted and Prestwick. Maybe these three were getting too crowded with other training flights.
What were Qantas 707s doing so far away from home ? Were the aircraft still actually owned by the airline at the time ?
The RAF 6 FTS from Finningley used to frequent Leeds Bradford during the 80s with the Jetstreams and Dominies; sometimes up to three a day. Nowadays it's the Cranwell B200s and not nearly as often. There is the occasional transport from Brize as well.