Sounds like a great adventure. The cycle.travel site is really cool. Looks like a lot of your route will be on cycle paths or otherwise protected from sharing the road with cars.
Are you going to take the train home? Looks like you're spending a good chunk of time at each cit which will be nice.
It reminds me of a bicycle circus caravan my friends used to do back during the anti-globalization movement. Using a caravan of bikes to raise awareness around social and environmental issues. At one point they got arrested for not having a 'bicycle license' which was odd because such a license doesn't exist.