Rather than start major mods on the Tutor why not look at an alternative?
There are many civilian flying training organisations spread across the country. All are required to have a CAA audit into their training systems and facilities.
Why doesn't the ACO look at these pre-audited schools and see if they might fill the needs for cadet AEF? An aircraft like the PA28 could take two, possibly three cadets (depending on their mass) and fly them for an hour or so for a reasonable rate. Spreading the load across a larger number of FTO's around the country might mean that at least some of the cadets do actually get to fly during their ACO service.
Because (a) the risks of further Tutor mid-airs have been reduced (fitting TAS, requiring radar service while flying cadets whenever possible) and (b) your solution denies many cadets the chance to handle the controls or even see clearly out of the front. Having flown both Tutor and PA28, I know I feel safer in a Tutor given the enormously better view from the cockpit backed up by the TAS.
And your parting shot (implying that currently no cadets get to fly) is an inaccurate slur - perhaps unintended - on those people who continue to work hard to deliver exactly that.