Go for it Duke!!!!
I'm not saying I will vote for you but publish your manifesto, engage with the electorate, and debate. Then I, like many others, can choose from the alternatives (of course some people will vote without consideration of the aforementioned but that is their right).
As Simone said, many people threaten to stand. Very few do. To those who are dismissing Duke's offer, keep it up. I don't know him but suspect the more people tell him he can't do something, the more likely he is to do so.
However, was it not Billy Connolly who once said something along the lines of "the ambition to stand for political influence should immediately preclude that person for ever doing so". Or words to that effect...
RH.