Thanks all - yes, Boomerangben, that's rather what I'd suspected, i.e. the moving obstacles would be the problem. As I was definitely talking about IFR-VFR transition then that would be an issue.
So in practice an IFR letdown at a nearby suitably equipped airfield followed by low-level VFR to destination is the way forwards, as this would allow me down to <1000ft.
Tim