Sheesh. As I said in my earlier post I'm pretty sure there is an issue with RAAUS aircraft getting clearances through active controlled airspace, let alone RA2 & RA3 areas. Further, I no longer fly RAAUS. I'm pretty sure departure/arrival clearance for GA VH aircraft would usually be available. Nothing in the ERSA to indicate differently, just that a clearance required when active. Certainly nothing restricting it to just commercial aircraft. I'm guessing you would have to track in/out a nominated way, not to have a jolly within the active airspace.