ZSully17 - First off welcome to the forum. Its good to have you.
I personally shoot a couple of different flintlocks. I shoot two T/C Hawkins .50 calibers and they are fast and accurate rifles. I have no complaints with the Thompson Center flintlock. I also shoot a Lyman .54 caliber Trade Rifle flintlock. This Lyman is a great shooting rifle. The lock is fast and sure. As long as I keep a good sharp flint in the jaw, this this seems to go off. Even with dull ones as my knapping ability needs to improve. I have shot a Great Plains Flintlock and was equally impressed with the lock time and ignition of that rifle. As for the Deerstalker, I have not had the pleasure.
The Thompson Center Firestorm is a good flintlock, but not very "traditional" I am told. Also there was a heck of a sale on flintlocks at AccuSport through RMC Sports
http://www.rmcsports.com/catalog.htmbut my understanding is they are gone now. They do sell one with a removable breech. From looking over the parts they use in the rifle's construction, I think they would be an excellent rifle....
Good luck in your search