Could it be this http://www.narrowboatworld.com/index.php/brian-holmes
Can't be sure as it aint my specialist area so to speak, but it looks very much like a Dawncraft cruiser from Stewpony. However here's a link to this unknown cruiser. http://www.canalscape.net/Dont%20Call%20it%20a%20Barge/Dont%20Call%20it%20a%20Barge.htm You will have to scroll down almost to the bottom of this article about 4 boats from the end.
I agree with Brian.It's almost certainly Brian Holmes' boat as featured on NBW.It's a steel boat, despite appearances, I think.
Yes, we thought it was the NBW chap's one - but there's an amazing additional coincidence too, which I shall write about later today (Tuesday)