Well, that's the kit list just about sorted - the link to it is under the route map. I think 9,035 grams isn't too bad although I'll try to shave it down.
Do I take an umbrella? This can be useful when it's raining but it's too warm to wear a waterproof and when it's the right type of rain, i.e. not windy and the rain coming straight down, especially when going up hills.
The battery shaver is a luxury but it may get left behind. It's very small but it still adds to the weight. I like to think that if I turn up at the occasional B&B I won't look like a tramp (apologies to those readers who generally sport a beard)!
I may take at least one walking pole. I don't normally use them whilst walking so one would be useful if there are any streams to cross or rabid dogs to fend off.