HAS59
You seem to forget, the reason RAFG existed was to face a very real threat. Some to provide Air Defence and some to get them in range of their targets in the East.
If Scotland leaves the UK it would be a totally different situation. We would have little reason to maintain our Front Line forces in Scotland.
Give them the Hawk T1 fleet and let them get on with it. I'm sure that the European Army will defend them. That is of course if Scotland were ever accepted into the EU. I believe their economics are rather suspect!