-300 or -600?
I think the -500 model would make a fantastic VIP airliner, with its range capability. Also, you can park it at an airport for a few days without them getting very upset, whereas with the -600 parking is effectively impossible to find apart from places like Montreal Mirabel, Victorville, Manston before it closed, Dubai world central, or Airbus locations like Hamburg Finkenwerder or Toulouse