The intention is for the Scottish Government to set policy for Scotland. The relevant rUK (as it will be then) organisation will implement that policy and report to the Scottish governments in relation to such matters. The rUK organisation would be suitably recompensed for this.
Matey, you have completely misjudged sentiment 'south of the border'! Why on earth would any "rUK" (as you so quaintly call it!) organisation be in the slightest interested in policy set by the 'Scottish Government'??
You want independence a n d - t h a t - i s - w h a t - y o u' l l - g e t !!
You'll be on your own. No UK CAA, no Bank of England Pound.
Best for Airlines, Airports & Routes in Scotland would be to ditch this Nationalist folly. Nationalists don't have a good track record anywhere, especially those with a 'socialist' bent!
But I agree with all the recent posts. stick to aviation and stop this being used as a mouthpiece for Nat propaganda.