I think you are trying to re-create the Zukill breeding
As to whether of not you could do this, it would (as always) depend on selection.
This means, I wouldn't be looking only at pedigrees, but also on style of the parents (which you'd have no way to know).
Poncho, of course, was a slick powerful head dog ... who never expended any energy, but forced his opponent to waste his own. I never saw Zsa Zsa go, but from what I remember being told she was a driving chest dog. There were a lot of good, rough, absolutely game dogs in that litter, but the two aces were Zukill and Little Kim.
Zukill was a powerhouse driving dog, like his mama, yet he was bizarre & slick as oil too (like his daddy) and would go for kill spots, which was entirely unique to him. Little Kim was simply a devastating nose and muzzle dog. Simply devastating. And that was like Poncho's two sisters, Missy and Ruby.
Jack