I've caught winter hares with my collie cross, admittedly I've never ran the fens as that would be pointless when there was plenty to go at locally, have you actually ran the fens back in the day, are they superior to the legendary Hull hares? Lol
As for saluki in a lurcher, there was a cracking litter near Retford the other year of these saluki, collie, bull, greyhounds, they would have been all-round dogs, the parents looked fine examples.
When this dog passes I'm definitely going to get a lurcher for knocking about with, even if it's for the odd run at rabbit and the occasional sl