If I was you, I would find someone who has a sure-enough real deal proven line of running hounds (Trigg, Running Walkers) and try to get a female and cross over Monkey. Keep the entire litter, and I would bet almost anything you'll find what you're looking for.
x2...a croghan running walker, a leopard cur but don't confuse the catahoula with a leopard cur... or even a larger type mtn cur...Breed monkey to a female of this type and then breed monkey to a grand daughter...you will be set for a while...