"BEagle does not work for Airbus, AFAIK been flying Boeings for well over the last 10 years of their career."
Wrong. I've never flown a Boeing (apart from one GCA in a B-52G at Barksdale in 1979). I don't actually work for anyone except myself having left the RAF. But I do some consultancy on an aircraft programme which uses an Airbus platform. Involvement with industry has been very interesting - the spin coming out of certain aerospace companies in particular.
Incidentally, there was once a 'double deck' Super Super VC10 project - but Nigel went for the 747 instead and that was the end of it!