Actually the tin we use is not really correct. It's supposed to be rolled iron that has been dipped in tin..., lighter than cast but a good bit heavier than tin alone.
If you are going to go to the trouble of getting tin, then be careful not to waste the money on something "sorta" right, for it's cheaper than copper, but not really "cheap", right?
So tin pots with lids are OK, but the CW "mucket" with a handle and a hinged lid, I have always been told is much more 18th century.
For a "light" solo camp, I have a I quart copper pot with lid, and a larger tin kettle w/o lid, and a small steel frypan that is copper plated with a brass, rivetted handle, and a pot scrubber and 3 "S" hooks. Added to that are my eating stuff which is a soldier's can, a wooden bowl, a wooden spoon, a twisted wire fork, and a folding knife. The copper pot is for hot water or coffee, the kettle is for the meal, and the frypan is for the odd fried item. I don't fry much except for bacon if I have it. Fresh meat is either stewed, or broiled over the fire.
For trekking I go simpler, and I have two soldier's "cans" (drinking mugs) of tin, one has a bale/handle so I can boil water in it, plus a small, brass, trade kettle with a bale. Hot water or beverages are made in the baled can, cold water in the other can, and meal in the kettle. All of this stuff is pretty small, and i could get by with just two soldier's cans.
For something like a market fair where I host guests and such..., my cooking set would need a wagon to move in the 18th century, but it was set up as a backup for a reenactment unit kitchen to serve two dozen people or more.
Really it all depends on how elaborate you need your food.
LD