As a graduate of MCCTTS and then having worked at E&I wing, I have fond memories of the place, and would be interested in a copy of the history.
WRT the Seahawk, I saw it arrive from Culdrose, all in black and marked as SAH1. I recall it was a swap for the Hunter which had been used for the airframe courses and which was intended for export to one of the South American operators.
I have often wondered if the Ferranti ATLAS computer in the training school was saved for posterity.
When I was there, they had a MRT as a sub-unit of RAF Stafford, but IIRC then lost that privelege as a result of a weekend jape involving the removal of a mail coach from outside a public house near Capel Curig.