I think this is a great idea...the UK seems to be almost embarassed to show a little bit of national pride, and maybe Boris is going to try to put that right. Although I didn't realise that there is one of the Voyagers assigned to VIP duties specifically.
A variation on Nutloose's scheme and / or the old VC10 scheme would look really well. Need a little bit of red (just a little) in there somewhere too.