Well, I've pretty much committed myself to doing it as a double-overnighter, setting out at about 11pm, more or less straight off the train.
I reckon I should get to see sunrise somewhere round Bodmin Moor, and hopefully th eferry will be running by the time I reach Fowey. Now to google for bus stops. I may need one round about Bude on the first night, but I hope I can reach Taunton for the second.
I expect this to be an ultra-full-value ride.