Can I respectfully suggest by the way that the OP is looking for advice on what I am sure will be a very enjoyable flight. This is an opportunity to tell them about what’s available both on the ground and in the air. The sad thing is many of us regulars are so jaded, we may have forgotten the excitement of such a first trip. I am sure the OP is less interested in either the particular axe you have to grind against BA, or how you would do the flight as a corporate road warrior who has seen it all before.