Well theirs the likes of Benji,Nipper and all the rest which have/had rough coats..these being from Merlin/Eve lines,but surely these already have stamina,theirs a litter advertised on the for sale bit..a rough coated coursing dog,to a 3/4 saluki bitch,i belive some of the pups are rough..if youre after a pup maybe have a look at them..
Their is already rough coated coursing dogs,so maybe use them to either a good saluki/grey bitch or a pure and hope for a rough,if thats what you want