Rather than having a 350 lb Nose Tackle with two 295-305 lb DEs in a 3-4, why not mix it up.
Kancey at the nose, and two 350 lb wrecking balls. Then two OLBs, and upgrade the LBs. Let Kancey blow up the Center and shoot either A gap. QBs don’t want quick pressure in their face. Having two “Vince Wolforks” in the 4i could make it work. Rotate some LB, corner or safety blitzes. Keep it fresh and freaky!
Runwise the defense could be daring teams to run up the gut, but bigger and better off ball linebackers could mitigate the risk.
Things could get interesting!