JPK - Well done summation. As a NJ resident I have hunted with exactly the weapons you described, in that order, since 1971. I love the English double bore rifles and Paradox guns. I am sure this evolved from my shotgun only for deer experiences.

I have have shot deer here with both 10 and 12 Paradoxes. My eyes started deteriorating badly so I needed a scoped gun. I took a hammer single shot Damascus Cogswell and Harrison 12 bore shotgun and lined it with a Hastings 20 bore rifle barrel at 26". I then had Talley 7/8" bases milled into the barrel flat and scoped it with a Lyman Alaskan. Shooting Hornady sabots, groups are under 2" at 100 yards. Very effective and I still feel a bit of nostaglia.

Good Luck to CGM on the Proffessional. Great idea, with a set of shotgun barrels , a great combo.