One of my short list picks in the hooked-breech category is the Lyman Trade Rifle. .54, flint, single trigger, single wedge, but it sure isn't pretty. That doesn't affect function, and the objection is nitpicky. I'd probably pick a pretty pinned gun over the Trade Rifle, though. I'm sometimes illogical.
OldBob
I have two of those Trade Rifles. One in .54 and the other .50. They are great shooters, easy to clean, excellent lock, and the touch hole does come out of them. Although the first thing I did was order a RMC touch hole and replace the Lyman one. The RMC works better and the Lyman is a spare. And get the ones that turn in and out on an Allen wrench VS a standard screw driver. Easier to put in and out and you don't slip off your mark and scratch the stock.