@ Barbara: Welcome to the forum! I am glad to see people from Europe! :hatsoff:
I would really recommend the 1816, because it has barrel bands.
I have a Springfield 1842 which is based on the french musket; its just a converted M1842 to rifling and percussion ignition.
I do prefer barrel bands because the surface of white barrels are very sensitive to powder residue, moisture and dirt and start to rust in no time if not cleaned and oiled after each shooting.
Sometimes a small amount of dirt gets under the barrel just after the nipple so after shooting I always disassemble the barrel to clean and oil it everywhere.
With the barrel of a brown bess you would have to remove the barrel pins (or how they're called) and they will get loose after some time.
YMMW
Maintenance will be much easier, and in my opinion barrel bands look sexy too - The more, the better!
:grin: :bow: