5. Yes, a HHA museum piece at >£10,000 per hour is hardly VFM nor I suspect would be presentationally nor reputationally viable to MOD.
It's a tiny bit nearer to £100,000 than to £10,000, I believe.
3. I'd also be very careful using the term 'ancient' along with the statement 'dubious airworthiness and sustainability' without understanding the support behind individual air systems. There is absolutely no reason why, for example, an Alpha Jet couldn't fly on contract in the UK.
There aren't that many Alpha Jets out there, and they offer little advantage over the Hawk in this role. I was thinking more of the Mirage F1s, Cheetahs, and ex IDF F-16s.......