It depends on what you class as Kit, each man would carry the obvious items of comfort, shaving was not mandatory on campaign, and a man was not expected to turn out on parade order, but in terms of "basics"
Helmet & glengarry
Italia (oliver) Water bottle
P1871 Valise, consisting of 2 x Ammo pouch, expense pouch, p53/74 or p76 bayonet and frog. Braces (marching order), valise kept on regimental transport.
Jag & oiler