There are some Tlingit proto-reenactors who would probably be willing to kill some Russians. Tlingit were less into being pacifists than Aztec were. They were somehow trading for iron knives before 1600 (Siberia?) and had good trade guns before encountering whites then a cannon right after.
http://www.absoluteastronomy.com/topics/Battle_of_SitkaThis might be that famous cannon on the left and not the monkin blunderbuss on the right.
Between Katherine, Paul, and Alexander uniforms changed quickly as well as the officer corps. Paul (the Mad) even went to a retro 1750-75 look that actually seems to have been one of his most effective and popular decisions complete with steel knee plates.
Basically infantry were separated by height into tall Grenadiers and short jaegers who dressed similar to colonial rangers. There were many regional uniform variations. The commander, Baranof, wore chainmail.