When you say UK Stout, I am not quite sure what you mean, but this doesn't look like the grain bill for a stout. It looks like it would make a pretty decent Southern English Brown, or maybe a brown porter, but you are going to need either Black Malt or Roast Barley if you want a good stout.
I would take that and add 8-12 oz of roasted barley, and probably cut out the crystal. I think it still might be a bit big for a stout, but it is a starting point. Most stouts I have had are in the 1.045-1.060 range.