Steve - did you realise you can fly from Exeter to Charle de Gaulle now? I just thought I'd mention it as when I priced it up although it was expensive, when you factor in the travel to London, Eurostar, taxi to Waterloo etc it wasn't that different. You may not be keen on flying of course!
It's very convenient for us as we live 6 minutes' from Exeter Airport and the flight's under an hour! We could be at DLP within 3 hours of locking our front door!