I've never brewed DPC, but Brewdog released all of their recipes for free about 6 months ago or so (maybe longer actually).
I did the Santa Paws recipe at Christmas and it turned out ok once the smoked malt mellowed out - I've never had the original though. I plan on doing the Punk clone and The Physic (which was the pre-cursor to 5AM Saint) in the new year but probably won't be brewing again until February.
I've done dead pony club from diy dog and it was cracking, not bang on the original but close enough. There is a thread on here that has my interpretation of the diy dog recipe.