I'm thinking of walking from London to Scotland?

I want to run the London marathon but I need to raise money and have a good plan to do so, I'm thinking of walking from London to Scotland around 400 miles by my self and sleeping next to the road in a one man tent I have to do something a bit mental in order to stand out and get some sponsors and this is what... show more I want to run the London marathon but I need to raise money and have a good plan to do so, I'm thinking of walking from London to Scotland around 400 miles by my self and sleeping next to the road in a one man tent I have to do something a bit mental in order to stand out and get some sponsors and this is what I've come up with. How long would it take me and what can I expect from such a gruiling walk.
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